diff --git a/autoload/SpaceVim/api.vim b/autoload/SpaceVim/api.vim
index 76fac3294..9894101d8 100644
--- a/autoload/SpaceVim/api.vim
+++ b/autoload/SpaceVim/api.vim
@@ -1,3 +1,11 @@
+" ============================================================================
+" File:        api.vim
+" Description: SpaceVim api core file
+" Author:      Shidong Wang <wsdjeg@outlook.com>
+" Website:     https://spacevim.org
+" License:     MIT
+" ============================================================================
+
 ""
 " @section API, api
 " SpaceVim contains a variety of public apis. here is a list of all the apis.
diff --git a/autoload/SpaceVim/autocmds.vim b/autoload/SpaceVim/autocmds.vim
index c4806f18b..ca6fbe7f4 100644
--- a/autoload/SpaceVim/autocmds.vim
+++ b/autoload/SpaceVim/autocmds.vim
@@ -1,6 +1,14 @@
+"=============================================================================
+" autocmd.vim --- main autocmd group for spacevim
+" Copyright (c) 2016-2017 Shidong Wang & Contributors
+" Author: Shidong Wang < wsdjeg at 163.com >
+" URL: https://spacevim.org
+" License: MIT license
+"=============================================================================
+
 "autocmds
 function! SpaceVim#autocmds#init() abort
-  augroup My_autocmds
+  augroup SpaceVim_core
     au!
     autocmd BufWinEnter quickfix nnoremap <silent> <buffer>
           \   q :cclose<cr>:lclose<cr>
@@ -57,9 +65,6 @@ function! SpaceVim#autocmds#init() abort
     endif
     autocmd BufWritePost *.vim call s:generate_doc()
     autocmd FileType * set scrolloff=7
-  augroup END
-  augroup SpaceVimInit
-    au!
     autocmd VimEnter * if !argc() | call SpaceVim#welcome() | endif
   augroup END
 endfunction
diff --git a/autoload/airline/extensions/tabline/formatters/spacevim.vim b/autoload/airline/extensions/tabline/formatters/spacevim.vim
index 01f4697fb..553b47f8f 100644
--- a/autoload/airline/extensions/tabline/formatters/spacevim.vim
+++ b/autoload/airline/extensions/tabline/formatters/spacevim.vim
@@ -1,3 +1,11 @@
+"=============================================================================
+" spacevim.vim --- buffer name formatter for airline
+" Copyright (c) 2016-2017 Shidong Wang & Contributors
+" Author: Shidong Wang < wsdjeg at 163.com >
+" URL: https://spacevim.org
+" License: MIT license
+"=============================================================================
+
 " @vimlint(EVL103, 1, a:buffers)
 function! airline#extensions#tabline#formatters#spacevim#format(bufnr, buffers) abort
   let g:_spacevim_list_buffers = a:buffers