Switch vim colorscheme to gruvbox (#23)

.config/nvim/colors/tangoX.vim

@@ -0,0 +1,81 @@
+"Tango Light ColorScheme for vim
+" =============================
+" ONLY FOR GUI
+"
+" author: IIssNan <iissnan@gmail.com>
+" version: 0.1 intialed.
+" date : 2009-04-29
+
+set background=light
+ 
+hi clear
+if exists("syntax_on")
+    syntax reset
+endif
+ 
+let colors_name = "tangoX"
+ 
+" 普通组 
+hi Normal guifg=#2e3436 guibg=#fefefe
+hi NonText guifg=#555753 guibg=#fefefe gui=none
+hi Cursor guibg=#222222
+hi CursorLine guibg=#eeeeec
+hi lCursor guibg=#d3d7cf
+hi LineNr guifg=#555753 guibg=#eeeeee
+ 
+" 搜索
+hi Search guifg=#eeeeec guibg=#204a87
+hi IncSearch guibg=#eeeeec guifg=#729fcf
+ 
+" 窗口
+hi StatusLine guifg=#ffffff guibg=#204a87 gui=bold
+hi StatusLineNC guifg=#d3d7df guibg=#4e9a06
+hi VertSplit guifg=#eeeeec guibg=#eeeeec
+hi Folded guifg=#d3d7cf guibg=#729fcf
+hi Visual guifg=#eeeeec guibg=#75507b
+ 
+" 其他
+hi Todo guifg=#ffffff guibg=#4e9a06 gui=bold
+hi Title guifg=#5c3566 gui=none
+ 
+" 注释
+hi Comment guifg=#06989a gui=none
+
+" 常数组
+hi Constant guifg=#3465a4
+hi String guifg=#3465a4 gui=none
+hi Character guifg=#3465a4
+hi Number guifg=#ce5c00
+hi Boolean guifg=#3465a4
+hi Float guifg=#ce5c00
+
+" 语句组
+hi Statement guifg=#ce5c00 gui=none
+hi Conditional guifg=#ef2929
+hi Repeat guifg=#ef2929
+hi Label guifg=#ef2929
+hi Operator guifg=#4e9a06
+hi Keyword guifg=#ef2929
+hi Exception guifg=#ef2929
+
+" 变量组
+hi Function guifg=#5c3566
+hi Identifier guifg=#6A5ACD
+
+" 预处理命令组
+hi PreProc guifg=#6A5ACD
+hi Include guifg=#6A5ACD
+hi Define guifg=#6A5ACD
+hi Macro guifg=#6A5ACD
+hi PreCondit guifg=#6A5ACD
+
+hi Underlined guifg=#cc0000 gui=none
+hi Type guifg=#204a87 gui=none
+hi Special guifg=#555753
+hi Error guifg=#fce94f guibg=#a40000
+ 
+" 比较组
+hi DiffAdd guifg=#ffffff guibg=#06989a gui=none
+hi DiffChange guifg=#ffffff guibg=#a40000 gui=none
+hi DiffDelete guibg=bg
+hi DiffText guifg=#ffffff guibg=#c4a000 gui=none