Switch vim colorscheme to gruvbox (#23)

.config/nvim/colors/grape.vim

@@ -0,0 +1,59 @@
+" vim: ts=4 sw=4 sts=4
+" Vim colorscheme
+" Author: Charles <cherry_avium@yahoo.com>
+" Version: -
+" Date: 26 January 2006
+
+set background=light
+hi clear
+if exists("syntax_on")
+    syntax reset
+endif
+let colors_name = "grape"
+
+hi Normal                   guibg=seashell   guifg=black
+
+" Window elements
+hi Cursor                   guifg=gray90 guibg=gray10
+" hi Folded                   guifg=#C0C0C0 guibg=#808080
+hi LineNr                   guibg=gray70 guifg=white
+" hi NonText                  guifg=#CCCCCC
+hi StatusLine               guifg=white guibg=gray70 gui=none
+hi StatusLineNC             guifg=gray90 guibg=gray70 gui=italic
+" hi Visual                   guifg=#C0C0C0 guibg=#000000
+
+" Main groups
+hi Comment                  guifg=#339933 gui=italic
+hi Constant                 guifg=black gui=bold
+hi Statement                guifg=slateblue gui=bold
+hi StatementU               guifg=slateblue gui=bold
+hi Keyword                  guifg=slateblue gui=bold
+hi Underlined               guifg=black gui=underline
+hi Error                    guifg=black guibg=red
+ 
+" Tag syntax
+hi Attribute                guifg=violetred gui=bold
+ 
+hi String                   guifg=darkgoldenrod
+hi! link Character          String
+hi! link Number             Constant
+hi! link Boolean            Constant
+hi! link Float              Constant
+ 
+hi Identifier               guifg=mediumvioletred
+hi Function                 guifg=blueviolet
+ 
+hi Operator                 guifg=red
+hi! link Preproc            Keyword
+hi! link Type               Keyword
+ 
+hi! link Special            Keyword
+hi! link Ignore             Normal
+hi! link Todo               Error
+
+hi Title                    guifg=black gui=bold
+
+hi! link HTMLH2             Title
+hi HTMLString               guifg=darkgoldenrod
+hi! link HTMLTag            Keyword
+hi! link HTMLEndTag         Keyword