I created a new repository DrummerTest on GitHub, and cloned it to my Mac.#
There I created a file templates/index.html, and copied in the default Drummer Template, making a trivial change to the HTML title to make sure Drummer was using the new template. #
I pushed my changes to GitHub. It would be possible for Drummer to get the template from GitHub using a raw.githubusercontent.com URL, but that always takes a few minutes to update, so it's not so convenient.#
So I set up a free Netlify site connected to the DrummerTest repository. That means the Netlify site will update every time changes are pushed to GitHub. It takes about 5 seconds. #