Switch vim colorscheme to gruvbox (#23)

.config/nvim/colors/herokudoc-gvim.vim

@@ -0,0 +1,90 @@
+" Vim color file
+" URL:        https://github.com/uu59/vim-herokudoc-theme
+" License:    MIT
+
+" this is for gvim only colorscheme
+" but 
+
+
+hi clear
+set bg=dark
+if exists("syntax_on")
+  syntax reset
+endif
+
+let g:colors_name = "herokudoc-gvim"
+
+hi Normal    guibg=#434e56 guifg=#f8f8f8 gui=NONE
+
+" vim gui
+hi Pmenu        guibg=#434e56 guifg=#f8f8f8 gui=NONE
+hi PmenuSel     guibg=#d8fa3c guifg=#010101 gui=NONE
+hi PmenuSbar    guibg=#434e56 guifg=#f8f8f8 gui=NONE
+hi PmenuThumb   guibg=#adc6ee guifg=#010101 gui=NONE
+hi LineNr       guibg=#434e56 guifg=#adc6ee gui=NONE
+hi CursorLineNr guibg=#292929 guifg=#d8fa3c
+hi CursorLine   guibg=#292929
+hi StatusLine   guibg=#000000 guifg=#d8fa3c gui=bold
+hi StatusLineNC guibg=#404040 guifg=#f8f8f8 gui=NONE
+hi VertSplit    guibg=#434e56 guifg=#f8f8f8 gui=NONE
+hi SpecialKey   guibg=#434e56 guifg=#a0a0a0
+hi Directory    guifg=#d8fa3c
+hi Folded       guibg=#434e56 guifg=#adc6ee gui=bold
+hi IncSearch    guibg=#010101 guifg=#d8fa3c
+hi MatchParen   gui=bold
+hi NonText      guifg=#adc6ee
+hi Question     guifg=#d8fa3c gui=NONE
+hi WarningMsg   guifg=#d8fa3c gui=NONE
+hi MoreMsg      guifg=#d8fa3c gui=NONE
+hi Search       guibg=#fbde2d guifg=#101010 gui=NONE
+
+" language highlighting
+
+" @ruby block variables, ENV
+" @js "var"
+hi Identifier guifg=#d8fa3c gui=NONE
+
+" constant
+hi Type guifg=#d8fa3c gui=NONE
+
+" @ruby require, load
+hi Include guifg=#f8f8f8 gui=bold
+
+hi Comment   guifg=#aeaeae
+
+" @ruby symbol
+hi Constant  guifg=#d8fa3c
+
+hi String    guifg=#adc6ee
+
+" @ruby proc lamnda callcc super etc
+" @js null self private
+hi Keyword   guifg=#fbde2d gui=NONE
+
+" @ruby module class def etc
+" @js unknown
+"hi Define    guifg=#fbde2d gui=NONE
+hi Define guifg=#f8f8f8 gui=bold
+
+" case when end do..end attr_reader
+hi Statement guifg=#f8f8f8 gui=bold
+
+" method
+hi Function  guifg=#fbde2d gui=NONE
+
+" %W!..!, /regex/
+hi Delimiter guifg=#adc6ee gui=NONE
+
+hi Visual guibg=#c8c8ff guifg=#010101 gui=NONE
+"hi Visual    guibg=#434e56 guifg=#f8f8f8 gui=NONE
+
+" @ruby shebang
+" @diff method name?
+" "^M"
+hi PreProc guifg=#d8fa3c gui=bold
+
+" @markdown head element
+hi Title guifg=#d8fa3c
+
+" ruby specific
+hi RubySymbol guifg=#d8fa3c