make changes for better local changes and modularize nvim configs

README.md

@@ -7,3 +7,9 @@ Run `docker build -t alpine-devenv . && docker run -it alpine-devenv` to test it
 Prereqs: `git curl`
 
 - Run `sh -c "$(curl -fsLS git.io/chezmoi)" -- init --apply candrewlee14 && zsh`
+
+## Local Changes
+
+To make local changes that won't be overridden on re-applying, make changes in corresponding .local files.
+
+For example, if you want to make local changes to `~/.config/nvim/coq_init.vim`, edit `~/.config/nvim/coq_init.vim.local`.