Jitsi-meet: Additional instance for wiki/Jitsi-Meet-Instances.md

[TechnologyClassroom]

https://jitsi.member.fsf.org/ could be added to the list at https://github.com/jitsi/jitsi-meet/wiki/Jitsi-Meet-Instances under United States.

* [fsf.org](https://jitsi.member.fsf.org/) -- ✅ -- [SSL Report](https://www.ssllabs.com/ssltest/analyze.html?d=jitsi.member.fsf.org/&latest) - Requires [FSF associate membership](https://my.fsf.org/join).

Handbook syntax:

| jitsi.member.fsf.org/ | ✅ | | [run SSL check!](https://www.ssllabs.com/ssltest/analyze.html?d=jitsi.member.fsf.org&latest) | Free Software Foundation |

[saghul]

We are in the process of moving the document here: https://github.com/jitsi/handbook/pull/111

[TechnologyClassroom]

I updated my comment to that format.

[saghul]

Added in https://github.com/jitsi/handbook/commit/72b82a9f12bb05e9158200300e4b3d426cf1f128 cheers!