Add these files to your theme and ensure that your grunt or gulp or whatever is watching the php files in your theme folder for changes and triggering live reload.
Ensure that yoursite.dev
has the live reload script at http://yoursite.dev:35729/livereload.js
which it likely will if you're using grunt watch right. If Not edit the livereload-loader.js
file to point to the right place where the file is.