I wanted to do this, but didn't know the syntax, or if it was possible. I checked in at https://docs.pagure.org/pagure/usage/markdown.html#hyperlinks after clicking the handy, nicely visible "Markdown Syntax" link offered while creating a ticket. I found nothing there, so I googled and found #1406 where I learned how. If this is in the official docs, I missed it and expected it there in the Hyperlinks section.