Add neovim for real

nvim/color.vim

@@ -0,0 +1,7 @@
+let num = 255
+while num >= 0
+    exec 'hi col_'.num.' ctermbg='.num.' ctermfg=white'
+    exec 'syn match col_'.num.' "ctermbg='.num.':...." containedIn=ALL'
+    call append(0, 'ctermbg='.num.':....')
+    let num = num - 1
+endwhile