diff --git a/README.md b/README.md
index e70f79b55..a8f369dbd 100644
--- a/README.md
+++ b/README.md
@@ -77,7 +77,7 @@ SpaceVim load custom configuration from `~/.SpaceVim.d/init.vim`,
 
 here is an example:
 
-```viml
+```vim
 " Here are some basic customizations, please refer to the ~/.SpaceVim.d/init.vim
 " file for all possible options:
 let g:spacevim_default_indent = 3
diff --git a/autoload/SpaceVim/api/vim/buffer.vim b/autoload/SpaceVim/api/vim/buffer.vim
index 6975ba7b9..f6c1ffe14 100644
--- a/autoload/SpaceVim/api/vim/buffer.vim
+++ b/autoload/SpaceVim/api/vim/buffer.vim
@@ -16,7 +16,7 @@ function! s:self.open(opts) abort
     let mode = get(a:opts, 'mode', 'vertical topleft split')
     let cmd = get(a:opts, 'cmd', '')
     if empty(buf)
-        exe mode bufopt
+        exe mode buf
     else
         exe mode buf
     endif
diff --git a/autoload/SpaceVim/api/vim/tab.vim b/autoload/SpaceVim/api/vim/tab.vim
index a5e4e4fb1..a287f0fc8 100644
--- a/autoload/SpaceVim/api/vim/tab.vim
+++ b/autoload/SpaceVim/api/vim/tab.vim
@@ -13,5 +13,9 @@ function! s:self._update() abort
 endfunction
 
 function! s:self._jump(tabnr, bufid) abort
-    
+    exe 'tabnext' . a:tabnr
+    if index(tabpagebuflist(a:tabnr), a:bufid) != -1
+        let winnr = bufwinnr(bufname(a:bufid))
+        exe winnr .  'wincmd w'
+    endif
 endfunction
diff --git a/autoload/SpaceVim/layers/lang/markdown.vim b/autoload/SpaceVim/layers/lang/markdown.vim
index d0c9aacbc..b5d7d2ad4 100644
--- a/autoload/SpaceVim/layers/lang/markdown.vim
+++ b/autoload/SpaceVim/layers/lang/markdown.vim
@@ -1,6 +1,7 @@
 function! SpaceVim#layers#lang#markdown#plugins() abort
     let plugins = []
-    call add(plugins, ['plasticboy/vim-markdown',{ 'on_ft' : 'markdown'}])
+    call add(plugins, ['gabrielelana/vim-markdown',{ 'on_ft' : 'markdown'}])
+    call add(plugins, ['joker1007/vim-markdown-quote-syntax',{ 'on_ft' : 'markdown'}])
     call add(plugins, ['mzlogin/vim-markdown-toc',{ 'on_ft' : 'markdown'}])
     call add(plugins, ['iamcco/mathjax-support-for-mkdp',{ 'on_ft' : 'markdown'}])
     call add(plugins, ['iamcco/markdown-preview.vim',{ 'on_ft' : 'markdown'}])
@@ -8,18 +9,25 @@ function! SpaceVim#layers#lang#markdown#plugins() abort
 endfunction
 
 function! SpaceVim#layers#lang#markdown#config() abort
-    let g:vim_markdown_fenced_languages = [ 'c++=cpp' , 'viml=vim', 'bash=sh', 'ini=dosini']
-    let g:vim_markdown_conceal = 0
-    let g:vim_markdown_folding_disabled = 1
-    let g:vim_markdown_frontmatter = 1
-    let g:vim_markdown_toml_frontmatter = 1
+    let g:markdown_enable_mappings = 0
+    let g:markdown_enable_insert_mode_leader_mappings = 0
+    let g:markdown_enable_spell_checking = 0
+    let g:markdown_quote_syntax_filetypes = {
+                \ "vim" : {
+                \   "start" : "\\%(vim\\|viml\\)",
+                \},
+                \}
     augroup SpaceVim_lang_markdown
         au!
         autocmd BufEnter *.md call s:mappings()
     augroup END
+    if executable('firefox')
+        let g:mkdp_path_to_chrome= 'firefox'
+    endif
 endfunction
 
 function! s:mappings() abort
     let g:_spacevim_mappings_space.l = {'name' : '+Language Specified'}
     call SpaceVim#mapping#space#langSPC('nmap', ['l','ft'], "Tabularize /|", 'Format table under cursor', 1)
+    call SpaceVim#mapping#space#langSPC('nmap', ['l','p'], "MarkdownPreview", 'Real-time markdown preview', 1)
 endfunction
diff --git a/docs/layers/lang/markdown.md b/docs/layers/lang/markdown.md
new file mode 100644
index 000000000..82a5473d8
--- /dev/null
+++ b/docs/layers/lang/markdown.md
@@ -0,0 +1,12 @@
+# [Layers](https://spacevim.org/layers) > lang#markdown
+
+This layer is for editing markdown file.
+
+Mappings
+
+Key      | mode   | description
+---      | ---    | ------------
+SPC l ft | Normal | Format table under cursor
+SPC l p  | Normal | Real-time markdown preview
+
+