added rsmt2 to updates in rust community and CFP

[AdrienChampion]

• notification of rsmt2 hitting v0.9, preparing for v1.0
• call for participation for meaningful stabilization

[nasa42]

Thanks for the PR!

Unfortunately, we may not accept this PR as we usually do not link to crate announcements (with some exceptions). For rationale, please see #441 (comment) and #358 (comment).

I'd however encourage you to post this article on Rust subreddit and Rust Herald if you are looking to get some traction.

Having that said, I've added a link to the project in Calls for Participation section.

[AdrienChampion]

I see, sorry about this I should read the guidelines more carefully :(
It makes perfect sense now that I think about it.

Thanks :)