github.com/graemephi/kahugo@v0.62.3-0.20211121071557-d78c0423784d/tpl/tplimpl/embedded/templates/shortcodes/gist.html

<script type="application/javascript" src="https://gist.github.com/{{ index .Params 0 }}/{{ index .Params 1 }}.js{{if len .Params | eq 3 }}?file={{ index .Params 2 }}{{end}}"></script>