docs: add social-team.md

[bnb]

This PR adds the foundation for the Social Team, addressing #454. Took a few more "next week"s than I'd anticipated, but here it is 🙇

[bnb]

since this affects both the TSC and CommComm:

@nodejs/tsc @nodejs/community-committee

❤️

[mhdawson]

LGTM with a few suggestions

[ahmadawais]

Looks good to me! ✔︎

[WaleedAshraf]

looks great 🎉

[Trott]

Sorry to be late to this party, but should there be annual recertification like we do for Moderation Team? That has been really good for removing inactive members, IMO.

[bnb]

@Trott that sounds like an excellent idea to me. Added almost verbatim section to what Moderation uses.

[bnb]

I'll give this until Monday before merging since it is a relatively impactful change that does add a non-trivial set of work to the project. If there are no -1s and any further responses are able to be addressed by Monday, I'm going to merge.

Again, one last ping to @nodejs/tsc and @nodejs/community-committee for eyes ❤️

[mcollina]

lgtm

[bnb]

As a final heads up, going to merge this today @nodejs/community-committee @nodejs/tsc pending any -1s.

[joesepi]

LGTM. Thanks.

[obensource]

@bnb Just a few readability fixes. Otherwise, looks great (thus approved)! 😎

Thanks a million for kicking this off! 🚀

[bnb]

Given that those changes were readability nits that don't meaningfully change the contents and @obensource approved, I'm going to merge this. Thank you all for your feedback - excited to see this move forward ❤️

I'll be working with @rginn on getting the auth for the accounts to the Social Team as appropriate 👍

[obensource]

🎉🎉🎉 Thanks for making this happen @bnb! 👏👏👏