diff --git a/docs/about.md b/docs/about.md
index 4e91c99df..4abe5566a 100644
--- a/docs/about.md
+++ b/docs/about.md
@@ -7,7 +7,7 @@ description: "SpaceVim is a community-driven vim distribution with layer feature
 
 [SpaceVim](https://github.com/SpaceVim/SpaceVim) is a community-driven vim distribution with layer feature.
 SpaceVim manages collections of plugins in layers. Layers make it easy for you, the user, to enable a new
-language or feature by grouping all the related plugins together. It got inspired by spacemacs. 
+language or feature by grouping all the related plugins together. It got inspired by spacemacs.
 
 ### Goals
 
diff --git a/docs/api/job.md b/docs/api/job.md
index 80b404b05..9c5e90dc5 100644
--- a/docs/api/job.md
+++ b/docs/api/job.md
@@ -50,4 +50,4 @@ call s:JOB.start(cmd,
 | `send(id, data)`   | send data to a job                                 |
 | `stop(id)`         | stop a jobe with specific job id                   |
 | `status(id)`       | check the status of a job with the specific job id |
-| `list()`           | list all the jobs                                       |
+| `list()`           | list all the jobs                                  |
diff --git a/docs/api/messletters.md b/docs/api/messletters.md
index af9e25bc3..520a434ba 100644
--- a/docs/api/messletters.md
+++ b/docs/api/messletters.md
@@ -20,7 +20,7 @@ This api provides some basic Functions for generating messletters.
 let s:PW = SpaceVim#api#import('messletters')
 let messletters = s:PW.circled_num(1, 2)
 " generate circled number 1, all available types:
-" 0: 1 ➛ ➊ 
+" 0: 1 ➛ ➊
 " 1: 1 ➛ ➀
 " 2: 1 ➛ ⓵
 echom messletters
diff --git a/docs/api/transient-state.md b/docs/api/transient-state.md
index 1c0151df1..73d784b2f 100644
--- a/docs/api/transient-state.md
+++ b/docs/api/transient-state.md
@@ -14,7 +14,7 @@ description: "transient state API provides some besic functions and values for c
 
 ## Intro
 
-transient state api provides functions for defining transient state key bindings. For example, the 
+transient state api provides functions for defining transient state key bindings. For example, the
 buffer transient state key binding (`SPC b .`).
 
 ## functions
diff --git a/docs/api/unicode/spinners.md b/docs/api/unicode/spinners.md
index 21e731953..1a0216e6a 100644
--- a/docs/api/unicode/spinners.md
+++ b/docs/api/unicode/spinners.md
@@ -17,7 +17,7 @@ description: "unicode#spinners API provides some basic functions for starting sp
 unicode#spinners API provides some basic functions for starting spinners timer
 
 ```vim
-let s:SPI = SpaceVim#api#import('unicode#spinners') 
+let s:SPI = SpaceVim#api#import('unicode#spinners')
 call s:SPI.apply('dot1',  'g:dotstr')
 set statusline+=%{g:dotstr}
 ```
diff --git a/docs/faq.md b/docs/faq.md
index e667bc076..3dd4d272d 100644
--- a/docs/faq.md
+++ b/docs/faq.md
@@ -1,6 +1,6 @@
 ---
-title: "FAQ" 
-description: "A list of questions and answers relating to SpaceVim, especially those most asked in the SpaceVim community" 
+title: "FAQ"
+description: "A list of questions and answers relating to SpaceVim, especially those most asked in the SpaceVim community"
 ---
 
 # SpaceVim FAQ
@@ -46,7 +46,7 @@ We decided going forward to use a more robust configuration mechanism in SpaceVi
 whole configuration file and if there are syntax errors in the configuration file, the entire configuration needs to
 be discarded.
 
-We compared TOML, YAML, XML, and JSON. We chose TOML as the default configuration language. Here are some of the 
+We compared TOML, YAML, XML, and JSON. We chose TOML as the default configuration language. Here are some of the
 drawbacks we found with the other choices considered:
 
 1.  YAML: It is error-prone due to indentation being significant and when configuring transitions.
diff --git a/docs/index.md b/docs/index.md
index 955a06b41..42302f8de 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -12,7 +12,7 @@ description: "SpaceVim is a community-driven vim distribution that seeks to prov
 
 ![welcome-page](https://user-images.githubusercontent.com/13142418/50423286-5b33a400-088e-11e9-830c-792ce1c7c126.png)
 
-# SpaceVim - Modern vim distribution 
+# SpaceVim - Modern vim distribution
 
 SpaceVim is a distribution of the vim editor that's inspired by spacemacs.
 It manages collections of plugins in layers, which help collect related
@@ -47,13 +47,13 @@ The last release is v1.0.0, check out [following-HEAD](https://github.com/SpaceV
 
 More posts are in the [SpaceVim's Blog](blog/)
 
-[Follow @SpaceVim](https://twitter.com/SpaceVim) 
+[Follow @SpaceVim](https://twitter.com/SpaceVim)
 
 ## Participating
 
 Discuss the project at [gitter.im/SpaceVim](https://gitter.im/SpaceVim/SpaceVim) or [/r/SpaceVim](https://www.reddit.com/r/SpaceVim/)
 
-Contribute code, report bugs and request features at [GitHub](https://github.com/SpaceVim/SpaceVim). 
+Contribute code, report bugs and request features at [GitHub](https://github.com/SpaceVim/SpaceVim).
 
 ## FAQ
 
diff --git a/docs/install.cmd b/docs/install.cmd
index dc005edd2..fbdbe156a 100644
--- a/docs/install.cmd
+++ b/docs/install.cmd
@@ -24,7 +24,7 @@ Function Pause ($Message = "Press any key to continue . . . ") {
     if ((Test-Path variable:psISE) -and $psISE) {
         $Shell = New-Object -ComObject "WScript.Shell"
         $Button = $Shell.Popup("Click OK to continue.", 0, "Script Paused", 0)
-    } else {     
+    } else {
         Write-Host -NoNewline $Message
         [void][System.Console]::ReadKey($true)
         Write-Host
@@ -105,4 +105,4 @@ echo ""
 
 Pause
 
-# vim:set ft=ps1: 
+# vim:set ft=ps1:
diff --git a/docs/install.sh b/docs/install.sh
index 815a847b7..631036368 100755
--- a/docs/install.sh
+++ b/docs/install.sh
@@ -373,7 +373,7 @@ install_fonts () {
   if [ $System == "Darwin" ];then
     if [ ! -e "$HOME/Library/Fonts" ];then
       mkdir "$HOME/Library/Fonts"
-    fi 
+    fi
     cp $HOME/.local/share/fonts/* $HOME/Library/Fonts/
   else
     fc-cache -fv > /dev/null
diff --git a/docs/layers.md b/docs/layers.md
index e26eb6be4..32c93901f 100644
--- a/docs/layers.md
+++ b/docs/layers.md
@@ -63,80 +63,80 @@ enable = false
 
 | Name | Description |
 | ---------- | ------------ |
-| [VersionControl](VersionControl/)    |   This layers provides general version control feature for vim. It should work with all VC backends such as Git, Mercurial, Bazaar, SVN, etc… | 
-| [autocomplete](autocomplete/)    |   Autocomplete code within SpaceVim, fuzzy find the candidates from multiple completion sources, expand snippet before cursor automatically | 
-| [chat](chat/)    |   SpaceVim chatting layer provide chatting with qq and weixin in vim. | 
-| [checkers](checkers/)    |   Syntax checking automatically within SpaceVim, display error on the sign column and statusline. | 
-| [chinese](chinese/)    |   Layer for chinese users, include chinese docs and runtime messages | 
-| [colorscheme](colorscheme/)    |   colorscheme provides a list of colorscheme for SpaceVim, default colorscheme is gruvbox with dark theme. | 
-| [core#banner](core/banner/)    |   This layer provides many default banner on welcome page. | 
-| [core#statusline](core/statusline/)    |   This layer provides default statusline for SpaceVim | 
-| [core#tabline](core/tabline/)    |   SpaceVim core#tabline layer provides a better tabline for SpaceVim | 
-| [core](core/)    |   SpaceVim core layer provides many default key bindings and features. | 
-| [cscope](cscope/)    |   cscope layer provides a smart cscope and pycscope helper for SpaceVim, help users win at cscope | 
-| [ctrlp](ctrlp/)    |   This layers provide a heavily customized ctrlp centric work-flow | 
-| [debug](debug/)    |   This layer provide debug workflow support in SpaceVim | 
-| [default](default/)    |   SpaceVim default layer contains no plugins, but It provides some better default config for SpaceVim. | 
-| [denite](denite/)    |   This layers provide a heavily customized Denite centric work-flow | 
-| [edit](edit/)    |   Improve code edit expr in SpaceVim, provide more text opjects. | 
-| [floobits](floobits/)    |   This layer adds support for the peer programming tool floobits to SpaceVim. | 
-| [format](format/)    |   Code formatting support for SpaceVim | 
-| [fzf](fzf/)    |   This layers provide a heavily customized fzf centric work-flow | 
-| [git](git/)    |   This layers adds extensive support for git | 
-| [github](github/)    |   This layer provides GitHub integration for SpaceVim | 
-| [japanese](japanese/)    |   Layer for japanese users, include japanese docs and runtime messages | 
-| [lang#WebAssembly](lang/WebAssembly/)    |   This layer adds WebAssembly support to SpaceVim | 
-| [lang#agda](lang/agda/)    |   This layer adds agda language support to SpaceVim | 
-| [lang#asciidoc](lang/asciidoc/)    |   Edit asciidoc within vim, autopreview asciidoc in the default browser, with this layer you can also format asciidoc file. | 
-| [lang#autohotkey](lang/autohotkey/)    |   This layer adds autohotkey language support to SpaceVim | 
-| [lang#c](lang/c/)    |   c/c++/object-c language support for SpaceVim, include code completion, jump to definition, quick runner. | 
-| [lang#clojure](lang/clojure/)    |   This layer is for clojure development, provide autocompletion, syntax checking, code format for clojure file. | 
-| [lang#csharp](lang/csharp/)    |   This layer is for csharp development | 
-| [lang#dart](lang/dart/)    |   This layer is for dart development, provide autocompletion, syntax checking, code format for dart file. | 
-| [lang#dockerfile](lang/dockerfile/)    |   This layer adds DockerFile to SpaceVim | 
-| [lang#elixir](lang/elixir/)    |   This layer is for elixir development, provide autocompletion, syntax checking, code format for elixir file. | 
-| [lang#elm](lang/elm/)    |   This layer is for elm development, provide autocompletion, syntax checking, code format for elm file. | 
-| [lang#erlang](lang/erlang/)    |   This layer is for erlang development, provide autocompletion, syntax checking, code format for erlang file. | 
-| [lang#extra](lang/extra/)    |   This layer adds extra language support to SpaceVim | 
-| [lang#fsharp](lang/fsharp/)    |   This layer adds fsharp language support to SpaceVim | 
-| [lang#go](lang/go/)    |   This layer is for golang development. It also provides additional language-specific key mappings. | 
-| [lang#haskell](lang/haskell/)    |   haskell language support for SpaceVim, includes code completion, syntax checking, jumping to definition, also provides language server protocol support for haskell | 
-| [lang#html](lang/html/)    |   Edit html in SpaceVim, with this layer, this layer provides code completion, syntax checking and code formatting for html. | 
-| [lang#java](lang/java/)    |   This layer is for Java development. All the features such as code completion, formatting, syntax checking, REPL and debug have be done in this layer. | 
-| [lang#javascript](lang/javascript/)    |   This layer is for JavaScript development | 
-| [lang#julia](lang/julia/)    |   This layer is for julia development, provide autocompletion, syntax checking and code formatting | 
-| [lang#kotlin](lang/kotlin/)    |   This layer adds kotlin language support to SpaceVim | 
-| [lang#latex](lang/latex/)    |   This layer provides support for writing LaTeX documents, including syntax highlighting, code completion, formatting etc. | 
-| [lang#lisp](lang/lisp/)    |   This layer is for lisp development, provide autocompletion, syntax checking, code format for lisp file. | 
-| [lang#lua](lang/lua/)    |   This layer is for lua development, provide autocompletion, syntax checking, code format for lua file. | 
-| [lang#markdown](lang/markdown/)    |   Edit markdown within vim, autopreview markdown in the default browser, with this layer you can also format markdown file. | 
-| [lang#nim](lang/nim/)    |   This layer adds nim language support to SpaceVim | 
-| [lang#ocaml](lang/ocaml/)    |   This layer is for ocaml development, provide autocompletion, syntax checking, code format for ocaml file. | 
-| [lang#perl](lang/perl/)    |   This layer is for perl development, provide autocompletion, syntax checking, code format for perl file. | 
-| [lang#php](lang/php/)    |   This layer adds PHP language support to SpaceVim | 
-| [lang#plantuml](lang/plantuml/)    |   This layer is for plantuml development, syntax highlighting for plantuml file. | 
-| [lang#puppet](lang/puppet/)    |   This layer adds puppet language support to SpaceVim | 
-| [lang#purescript](lang/purescript/)    |   This layer is for purescript development, provide autocompletion, syntax checking, code format for purescript file. | 
-| [lang#python](lang/python/)    |   This layer is for Python development, provide autocompletion, syntax checking, code format for python file. | 
-| [lang#ruby](lang/ruby/)    |   This layer is for ruby development, provide autocompletion, syntax checking, code format for ruby file. | 
-| [lang#rust](lang/rust/)    |   This layer is for rust development, provide autocompletion, syntax checking, code format for rust file. | 
-| [lang#scala](lang/scala/)    |   This layer adds scala language support to SpaceVim | 
-| [lang#scheme](lang/scheme/)    |   This layer adds scheme language support to SpaceVim | 
-| [lang#sh](lang/sh/)    |   Shell script development layer, provides autocompletion, syntax checking, code format for bash and zsh script. | 
-| [lang#swift](lang/swift/)    |   swift language support for SpaceVim, includes code completion, syntax highlighting | 
-| [lang#typescript](lang/typescript/)    |   This layer is for TypeScript development | 
-| [lang#vim](lang/vim/)    |   This layer is for writting vim script, including code completion, syntax checking and buffer formatting | 
-| [lang#vue](lang/vue/)    |   This layer adds vue language support to SpaceVim | 
-| [lsp](language-server-protocol/)    |   This layers provides language server protocol for vim and neovim | 
-| [leaderf](leaderf/)    |   This layers provide a heavily customized LeaderF centric work-flow | 
-| [shell](shell/)    |   This layer provide shell support in SpaceVim | 
-| [sudo](sudo/)    |   sudo layer provides ability to read and write file elevated privileges in SpaceVim | 
-| [tags](tags/)    |   This layer provide tags manager for project | 
-| [tests](tests/)    |  This layer allows to run tests directly on SpaceVim | 
-| [tmux](tmux/)    |   This layers adds extensive support for tmux | 
-| [tools#dash](tools/dash/)    |   This layer provides Dash integration for SpaceVim | 
-| [tools](tools/)    |   This layer provides some tools for vim | 
-| [ui](ui/)    |   Awesome UI layer for SpaceVim, provide IDE-like UI for neovim and vim in both TUI and GUI | 
+| [VersionControl](VersionControl/)    |   This layers provides general version control feature for vim. It should work with all VC backends such as Git, Mercurial, Bazaar, SVN, etc… |
+| [autocomplete](autocomplete/)    |   Autocomplete code within SpaceVim, fuzzy find the candidates from multiple completion sources, expand snippet before cursor automatically |
+| [chat](chat/)    |   SpaceVim chatting layer provide chatting with qq and weixin in vim. |
+| [checkers](checkers/)    |   Syntax checking automatically within SpaceVim, display error on the sign column and statusline. |
+| [chinese](chinese/)    |   Layer for chinese users, include chinese docs and runtime messages |
+| [colorscheme](colorscheme/)    |   colorscheme provides a list of colorscheme for SpaceVim, default colorscheme is gruvbox with dark theme. |
+| [core#banner](core/banner/)    |   This layer provides many default banner on welcome page. |
+| [core#statusline](core/statusline/)    |   This layer provides default statusline for SpaceVim |
+| [core#tabline](core/tabline/)    |   SpaceVim core#tabline layer provides a better tabline for SpaceVim |
+| [core](core/)    |   SpaceVim core layer provides many default key bindings and features. |
+| [cscope](cscope/)    |   cscope layer provides a smart cscope and pycscope helper for SpaceVim, help users win at cscope |
+| [ctrlp](ctrlp/)    |   This layers provide a heavily customized ctrlp centric work-flow |
+| [debug](debug/)    |   This layer provide debug workflow support in SpaceVim |
+| [default](default/)    |   SpaceVim default layer contains no plugins, but It provides some better default config for SpaceVim. |
+| [denite](denite/)    |   This layers provide a heavily customized Denite centric work-flow |
+| [edit](edit/)    |   Improve code edit expr in SpaceVim, provide more text opjects. |
+| [floobits](floobits/)    |   This layer adds support for the peer programming tool floobits to SpaceVim. |
+| [format](format/)    |   Code formatting support for SpaceVim |
+| [fzf](fzf/)    |   This layers provide a heavily customized fzf centric work-flow |
+| [git](git/)    |   This layers adds extensive support for git |
+| [github](github/)    |   This layer provides GitHub integration for SpaceVim |
+| [japanese](japanese/)    |   Layer for japanese users, include japanese docs and runtime messages |
+| [lang#WebAssembly](lang/WebAssembly/)    |   This layer adds WebAssembly support to SpaceVim |
+| [lang#agda](lang/agda/)    |   This layer adds agda language support to SpaceVim |
+| [lang#asciidoc](lang/asciidoc/)    |   Edit asciidoc within vim, autopreview asciidoc in the default browser, with this layer you can also format asciidoc file. |
+| [lang#autohotkey](lang/autohotkey/)    |   This layer adds autohotkey language support to SpaceVim |
+| [lang#c](lang/c/)    |   c/c++/object-c language support for SpaceVim, include code completion, jump to definition, quick runner. |
+| [lang#clojure](lang/clojure/)    |   This layer is for clojure development, provide autocompletion, syntax checking, code format for clojure file. |
+| [lang#csharp](lang/csharp/)    |   This layer is for csharp development |
+| [lang#dart](lang/dart/)    |   This layer is for dart development, provide autocompletion, syntax checking, code format for dart file. |
+| [lang#dockerfile](lang/dockerfile/)    |   This layer adds DockerFile to SpaceVim |
+| [lang#elixir](lang/elixir/)    |   This layer is for elixir development, provide autocompletion, syntax checking, code format for elixir file. |
+| [lang#elm](lang/elm/)    |   This layer is for elm development, provide autocompletion, syntax checking, code format for elm file. |
+| [lang#erlang](lang/erlang/)    |   This layer is for erlang development, provide autocompletion, syntax checking, code format for erlang file. |
+| [lang#extra](lang/extra/)    |   This layer adds extra language support to SpaceVim |
+| [lang#fsharp](lang/fsharp/)    |   This layer adds fsharp language support to SpaceVim |
+| [lang#go](lang/go/)    |   This layer is for golang development. It also provides additional language-specific key mappings. |
+| [lang#haskell](lang/haskell/)    |   haskell language support for SpaceVim, includes code completion, syntax checking, jumping to definition, also provides language server protocol support for haskell |
+| [lang#html](lang/html/)    |   Edit html in SpaceVim, with this layer, this layer provides code completion, syntax checking and code formatting for html. |
+| [lang#java](lang/java/)    |   This layer is for Java development. All the features such as code completion, formatting, syntax checking, REPL and debug have be done in this layer. |
+| [lang#javascript](lang/javascript/)    |   This layer is for JavaScript development |
+| [lang#julia](lang/julia/)    |   This layer is for julia development, provide autocompletion, syntax checking and code formatting |
+| [lang#kotlin](lang/kotlin/)    |   This layer adds kotlin language support to SpaceVim |
+| [lang#latex](lang/latex/)    |   This layer provides support for writing LaTeX documents, including syntax highlighting, code completion, formatting etc. |
+| [lang#lisp](lang/lisp/)    |   This layer is for lisp development, provide autocompletion, syntax checking, code format for lisp file. |
+| [lang#lua](lang/lua/)    |   This layer is for lua development, provide autocompletion, syntax checking, code format for lua file. |
+| [lang#markdown](lang/markdown/)    |   Edit markdown within vim, autopreview markdown in the default browser, with this layer you can also format markdown file. |
+| [lang#nim](lang/nim/)    |   This layer adds nim language support to SpaceVim |
+| [lang#ocaml](lang/ocaml/)    |   This layer is for ocaml development, provide autocompletion, syntax checking, code format for ocaml file. |
+| [lang#perl](lang/perl/)    |   This layer is for perl development, provide autocompletion, syntax checking, code format for perl file. |
+| [lang#php](lang/php/)    |   This layer adds PHP language support to SpaceVim |
+| [lang#plantuml](lang/plantuml/)    |   This layer is for plantuml development, syntax highlighting for plantuml file. |
+| [lang#puppet](lang/puppet/)    |   This layer adds puppet language support to SpaceVim |
+| [lang#purescript](lang/purescript/)    |   This layer is for purescript development, provide autocompletion, syntax checking, code format for purescript file. |
+| [lang#python](lang/python/)    |   This layer is for Python development, provide autocompletion, syntax checking, code format for python file. |
+| [lang#ruby](lang/ruby/)    |   This layer is for ruby development, provide autocompletion, syntax checking, code format for ruby file. |
+| [lang#rust](lang/rust/)    |   This layer is for rust development, provide autocompletion, syntax checking, code format for rust file. |
+| [lang#scala](lang/scala/)    |   This layer adds scala language support to SpaceVim |
+| [lang#scheme](lang/scheme/)    |   This layer adds scheme language support to SpaceVim |
+| [lang#sh](lang/sh/)    |   Shell script development layer, provides autocompletion, syntax checking, code format for bash and zsh script. |
+| [lang#swift](lang/swift/)    |   swift language support for SpaceVim, includes code completion, syntax highlighting |
+| [lang#typescript](lang/typescript/)    |   This layer is for TypeScript development |
+| [lang#vim](lang/vim/)    |   This layer is for writting vim script, including code completion, syntax checking and buffer formatting |
+| [lang#vue](lang/vue/)    |   This layer adds vue language support to SpaceVim |
+| [lsp](language-server-protocol/)    |   This layers provides language server protocol for vim and neovim |
+| [leaderf](leaderf/)    |   This layers provide a heavily customized LeaderF centric work-flow |
+| [shell](shell/)    |   This layer provide shell support in SpaceVim |
+| [sudo](sudo/)    |   sudo layer provides ability to read and write file elevated privileges in SpaceVim |
+| [tags](tags/)    |   This layer provide tags manager for project |
+| [tests](tests/)    |  This layer allows to run tests directly on SpaceVim |
+| [tmux](tmux/)    |   This layers adds extensive support for tmux |
+| [tools#dash](tools/dash/)    |   This layer provides Dash integration for SpaceVim |
+| [tools](tools/)    |   This layer provides some tools for vim |
+| [ui](ui/)    |   Awesome UI layer for SpaceVim, provide IDE-like UI for neovim and vim in both TUI and GUI |
 
 <!-- SpaceVim layer list end -->
 
diff --git a/docs/layers/autocomplete.md b/docs/layers/autocomplete.md
index 3246f5297..ab6c6b249 100644
--- a/docs/layers/autocomplete.md
+++ b/docs/layers/autocomplete.md
@@ -52,7 +52,7 @@ You can customize the user experience of auto-completion with the following laye
 when the `Return`/`Enter` key is pressed, the possible values are:
    - `complete` completes with the current selection
    - `smart` completes with current selection and expand snippet or argvs
-   - `nil` 
+   - `nil`
 By default it is `complete`.
 2. `auto-completion-tab-key-behavior` set the action to
 perform when the `TAB` key is pressed, the possible values are:
diff --git a/docs/layers/core.md b/docs/layers/core.md
index 5a502feac..a67414e5c 100644
--- a/docs/layers/core.md
+++ b/docs/layers/core.md
@@ -4,7 +4,7 @@ description: "SpaceVim core layer provides many default key bindings and feature
 ---
 
 # [Available Layers](../) >> core
- 
+
 <!-- vim-markdown-toc GFM -->
 
 - [Intro](#intro)
@@ -14,8 +14,8 @@ description: "SpaceVim core layer provides many default key bindings and feature
 <!-- vim-markdown-toc -->
 
 ## Intro
- 
+
 ## Features
- 
+
 ## Configuration
- 
+
diff --git a/docs/layers/core/banner.md b/docs/layers/core/banner.md
index 27f752175..e856d8c5f 100644
--- a/docs/layers/core/banner.md
+++ b/docs/layers/core/banner.md
@@ -14,7 +14,7 @@ description: "This layer provides many default banner on welcome page."
 
 ## Description
 
-  This layer provides many default banner on welcome page. 
+  This layer provides many default banner on welcome page.
 
 ## Configuration
 
diff --git a/docs/layers/core/statusline.md b/docs/layers/core/statusline.md
index 627aa77e3..14a2c6a47 100644
--- a/docs/layers/core/statusline.md
+++ b/docs/layers/core/statusline.md
@@ -17,6 +17,6 @@ description: "This layer provides default statusline for SpaceVim"
  This layer provides default statusline for SpaceVim.
 
 ## Configuration
-  
+
 All statusline key bindings can be find on [SpaceVim documentation](../../../documentation/#statusline)
-  
+
diff --git a/docs/layers/core/tabline.md b/docs/layers/core/tabline.md
index 4e5b4d2f3..7269e1f9c 100644
--- a/docs/layers/core/tabline.md
+++ b/docs/layers/core/tabline.md
@@ -4,9 +4,9 @@ description: "SpaceVim core#tabline layer provides a better tabline for SpaceVim
 ---
 
 # [Available Layers](../) >> core#tabline
-  
+
 ## Intro
-  
+
 Different from airline, this layer provode a simple tabline for SpaceVim, which is more fast and compitable with SpaceVim's core feature.
 
 ## Key bindings
diff --git a/docs/layers/github.md b/docs/layers/github.md
index df419f833..9cee42874 100644
--- a/docs/layers/github.md
+++ b/docs/layers/github.md
@@ -42,7 +42,7 @@ To use this configuration layer, add following snippet to your custom configurat
 
 ## Extra configuration for GitHub and Gist
 
-For avoid repeating input the account name and passwrod, you need to add the belowing contennt for auto .SpaceVim.d/autoload/myspacevim.vim [Bootstrap Functions](https://spacevim.org/documentation/#bootstrap-functions). 
+For avoid repeating input the account name and passwrod, you need to add the belowing contennt for auto .SpaceVim.d/autoload/myspacevim.vim [Bootstrap Functions](https://spacevim.org/documentation/#bootstrap-functions).
 
 ```vim
 func! myspacevim#before() abort
diff --git a/docs/layers/lang/agda.md b/docs/layers/lang/agda.md
index 862171318..898cce94f 100644
--- a/docs/layers/lang/agda.md
+++ b/docs/layers/lang/agda.md
@@ -16,7 +16,7 @@ description: "This layer adds agda language support to SpaceVim"
 
 ## Description
 
-Agda is a dependently typed functional programming language. 
+Agda is a dependently typed functional programming language.
 This layer adds [agda](https://github.com/agda/agda) language support to SpaceVim.
 
 ## Features
diff --git a/docs/layers/lang/dart.md b/docs/layers/lang/dart.md
index 70f71a3c5..dfab41f4c 100644
--- a/docs/layers/lang/dart.md
+++ b/docs/layers/lang/dart.md
@@ -60,7 +60,7 @@ pub global activate dart_repl
 
 ### Inferior REPL process
 
-Start a `dart.repl` inferior REPL process with `SPC l s i`. 
+Start a `dart.repl` inferior REPL process with `SPC l s i`.
 
 Send code to inferior process commands:
 
diff --git a/docs/layers/lang/elixir.md b/docs/layers/lang/elixir.md
index 83ebc879d..8d324cbe7 100644
--- a/docs/layers/lang/elixir.md
+++ b/docs/layers/lang/elixir.md
@@ -57,7 +57,7 @@ To use this configuration layer, update custom configuration file with:
 
 ### Inferior REPL process
 
-Start a `iex` inferior REPL process with `SPC l s i`. 
+Start a `iex` inferior REPL process with `SPC l s i`.
 
 Send code to inferior process commands:
 
diff --git a/docs/layers/lang/elm.md b/docs/layers/lang/elm.md
index 52817a510..ce844ac4f 100644
--- a/docs/layers/lang/elm.md
+++ b/docs/layers/lang/elm.md
@@ -84,7 +84,7 @@ To use this configuration layer, update custom configuration file with:
 
 ### Inferior REPL process
 
-Start a `elm repl` inferior REPL process with `SPC l s i`. 
+Start a `elm repl` inferior REPL process with `SPC l s i`.
 
 ![elm repl](https://user-images.githubusercontent.com/13142418/44625046-7b2f7700-a931-11e8-807e-dba3f73c9e90.png)
 
diff --git a/docs/layers/lang/erlang.md b/docs/layers/lang/erlang.md
index 164e73cd3..d0ad2e8c0 100644
--- a/docs/layers/lang/erlang.md
+++ b/docs/layers/lang/erlang.md
@@ -53,7 +53,7 @@ To use this configuration layer, update custom configuration file with:
 
 ### Inferior REPL process
 
-Start a `erl` inferior REPL process with `SPC l s i`. 
+Start a `erl` inferior REPL process with `SPC l s i`.
 
 Send code to inferior process commands:
 
diff --git a/docs/layers/lang/fsharp.md b/docs/layers/lang/fsharp.md
index b30dcb18c..2d0156a95 100644
--- a/docs/layers/lang/fsharp.md
+++ b/docs/layers/lang/fsharp.md
@@ -43,7 +43,7 @@ To use this configuration layer, update custom configuration file with:
 
 ### Inferior REPL process
 
-Start a `fsharpi --readline-` inferior REPL process with `SPC l s i`. 
+Start a `fsharpi --readline-` inferior REPL process with `SPC l s i`.
 
 Send code to inferior process commands:
 
diff --git a/docs/layers/lang/haskell.md b/docs/layers/lang/haskell.md
index 70dd367af..2fafee6ac 100644
--- a/docs/layers/lang/haskell.md
+++ b/docs/layers/lang/haskell.md
@@ -32,5 +32,5 @@ To use this configuration layer, update custom configuration file with:
 - syntax checking
 - goto definition
 - refernce finder
-- language server protocol (need lsp layer) 
+- language server protocol (need lsp layer)
 
diff --git a/docs/layers/lang/html.md b/docs/layers/lang/html.md
index 7edd2301d..8ee02f65b 100644
--- a/docs/layers/lang/html.md
+++ b/docs/layers/lang/html.md
@@ -42,7 +42,7 @@ npm install --global vscode-html-languageserver-bin
 - Tags navigation on key % using matchit.vim
 - auto-completion
 - syntax checking
-- language server protocol (need `lsp` layer) 
+- language server protocol (need `lsp` layer)
 
 ## Key bindings
 
diff --git a/docs/layers/lang/java.md b/docs/layers/lang/java.md
index 1311bd293..723417381 100644
--- a/docs/layers/lang/java.md
+++ b/docs/layers/lang/java.md
@@ -101,7 +101,7 @@ to SpaceVim custom configuration file.
 
 ### Inferior REPL process
 
-Start a `jshell` inferior REPL process with `SPC l s i`. 
+Start a `jshell` inferior REPL process with `SPC l s i`.
 
 Send code to inferior process commands:
 
diff --git a/docs/layers/lang/julia.md b/docs/layers/lang/julia.md
index 0b9fa4a18..b25e34057 100644
--- a/docs/layers/lang/julia.md
+++ b/docs/layers/lang/julia.md
@@ -44,7 +44,7 @@ To use this configuration layer, update custom configuration file with:
 
 ### Inferior REPL process
 
-Start a `julia` inferior REPL process with `SPC l s i`. 
+Start a `julia` inferior REPL process with `SPC l s i`.
 
 Send code to inferior process commands:
 
diff --git a/docs/layers/lang/perl.md b/docs/layers/lang/perl.md
index 9911faadf..17615bd34 100644
--- a/docs/layers/lang/perl.md
+++ b/docs/layers/lang/perl.md
@@ -44,7 +44,7 @@ To use this configuration layer, update custom configuration file with:
 
 ### Inferior REPL process
 
-Start a `perl` inferior REPL process with `SPC l s i`. 
+Start a `perl` inferior REPL process with `SPC l s i`.
 
 Send code to inferior process commands:
 
diff --git a/docs/layers/lang/purescript.md b/docs/layers/lang/purescript.md
index 346952823..c02333559 100644
--- a/docs/layers/lang/purescript.md
+++ b/docs/layers/lang/purescript.md
@@ -72,7 +72,7 @@ To use this configuration layer, update custom configuration file with:
 
 ### Inferior REPL process
 
-Start a `pulp repl` inferior REPL process with `SPC l s i`. 
+Start a `pulp repl` inferior REPL process with `SPC l s i`.
 
 Send code to inferior process commands:
 
diff --git a/docs/layers/shell.md b/docs/layers/shell.md
index dd4f90fb7..614f9d13a 100644
--- a/docs/layers/shell.md
+++ b/docs/layers/shell.md
@@ -44,7 +44,7 @@ The default shell is quickly accessible via a the default shortcut key `SPC '`.
 
 ### Default shell position and height
 
-It is possible to choose where the shell should pop up by setting the 
+It is possible to choose where the shell should pop up by setting the
 variable `default_position` to either `top`, `bottom`, `left`, `right`, or
 `full`. Default value is `top`. It is also possible to set the default height
 in percents with the variable `default_height`. Default value is 30.