Link support #717
Description
It would be cool if there were markdown link support. I see many authors use it (ex https://lab.flipper.net/apps/totp). You can add links to any github readme, so I'm assuming the security risks aren't significant, and could be further mitigated by 1. only allowing limited url prefixes (github, discord, a few other sites), and adding one of those "you're leaving lab.flipper.net and being redirected to xxxx, are you sure?" pages like linkedin has.