ref: 38204c4ab6fa2aa2ab8bd06ddb3e07b66e5f9646
dir: /tpl/tplimpl/embedded/templates/shortcodes/gist.html/
<script src="//gist.github.com/{{ index .Params 0 }}/{{ index .Params 1 }}.js{{if len .Params | eq 3 }}?file={{ index .Params 2 }}{{end}}"></script>