document how to extend and create own colorscheme

colors/neovim.lua

@@ -10,4 +10,5 @@ package.loaded["zenbones.neovim"] = nil
 
 require("zenbones.neovim.terminal").setup()
 
+-- include our theme file and pass it to lush to apply
 require "lush"(require "zenbones.neovim")