Add Onedark Style (nvim-lua#590)

* Add style options to Onedark setup (init.lua)

* stylua init.lua

* Load onedark through `require`

* Improve commenting

Author: Tokarak

init.lua

@@ -193,6 +193,7 @@ require('lazy').setup({
     -- Theme inspired by Atom
     'navarasu/onedark.nvim',
     priority = 1000,
+    lazy = false,
     config = function()
       vim.cmd.colorscheme 'onedark'
     end,