update community engagement main page

[johav]

@Johanssen fro the social media document or here we can align our strategy for community engagement. Just so you know we also have this page here.

• https://github.com/AfricArxiv/community-engagement/

[Johanssen]

I completed the first version of the strategy doc both on GDoc and Github.. I could include how to publish and post a blog post in the second version if it is relevant to this document.

[Johanssen]

Please review and add comments

[johav]

Looks excellent! great kickoff for our community building, thanks so much, @Johanssen Obanda

[Johanssen]

Great. you are welcome