ref: 9ff36c5a8f9a09754c67f6019aba79ebc08d164f
dir: /docs/layouts/shortcodes/gh.html/
{{ range .Params }} {{ if eq (substr . 0 1) "@" }} <a href="//github.com/{{ substr . 1 }}">{{ . }}</a> {{ else }} <a href="//github.com/spf13/hugo/issues/{{ . }}">#{{ . }}</a> {{ end }} {{ end }}