docs: added comments to config files

lua/config/autocmds.lua

@@ -0,0 +1,3 @@
+-- Autocmds are automatically loaded on the VeryLazy event
+-- Default autocmds that are always set: https://github.com/LazyVim/LazyVim/blob/main/lua/lazyvim/config/autocmds.lua
+-- Add any additional autocmds here