Speaker social media handles

[ghosty-be]

Feedback from Mastodon:
It's a bit of a shame there isn't a section for the social media handles on the speaker profiles IMHO - maybe something for FOSDEM to include next year.

[ghosty-be]

And maybe somewhat related to that, someone also said they found it hard to find links to the projects (and / or their licensing) some speakers presented... (not sure if you can make all those things optional fields?)