Fix Outreachy favicon on title bar

[OrionStar25]

The outreachy logo favicon seems to be broken right now.

[jameysharp]

I could be wrong, but I don't think this site ever had a favicon...? I can't find one anywhere in the git history, anyway.

So there are two major steps to fixing this issue: First, create a favicon 😁 and second, work out how our gunicorn-based deployment should serve up that favicon.

Are you interested in working on either or both of those pieces? I don't think Sage or I will get to this any time soon ourselves, but I'd be happy to provide any context you need about how our deployment setup works.

[OrionStar25]

Can we not use the logo used on LinkedIn?

[sagesharp]

The Outreachy logo on LinkedIn and Twitter is not well-designed for a square format. The text is not going to be readable for the very small favicon. Maybe having a favicon of just the stairs would be good. If you (or another designer) want to work with us to design a favicon, please let us know!

[tapaswenipathak]

Hey folks: Can I PR?

[OrionStar25]

I am not a designer, so I won't be working on it 👍