Switch vim colorscheme to gruvbox (#23)

.config/nvim/colors/c.vim

@@ -0,0 +1,32 @@
+" Vim Syntax Highlighting File
+" 
+" Language: C
+"
+" Extra: This is to copy the vi clone elvis on its
+"        syntax highlighting.
+"
+" Maintainer: Dean Jones<dean@cleancode.org>
+"
+" Comment: This works well with the default c.vim
+"          that comes with vim6.x.  It basically 
+"          overrides the very bright colors it uses
+"          and uses simple white for highlighting 
+"          key words and types in the C language.
+"          If you're using Eterm, uncomment the 
+"          Normal line specified below.
+
+hi clear
+
+" Eterm users, uncomment the line below
+" hi Normal ctermfg=grey
+
+hi PreProc ctermfg=white
+hi Type ctermfg=white
+hi Statement ctermfg=white
+hi Comment ctermfg=grey
+hi Constant cterm=NONE ctermfg=NONE
+hi Number cterm=NONE ctermfg=NONE
+hi String cterm=NONE ctermfg=NONE
+hi Special cterm=NONE ctermfg=NONE
+
+" EOF for Dean's Elvis like highlighting