Add CODEOWNERS for repository

[jeffcarp]

Description

Adds a .github/CODEOWNERS file referencing @keras-team/core to automatically request reviews on pull requests.

Team Members (@keras-team/core):

• @fchollet
• @jeffcarp
• @divyashreepathihalli
• @JyotinderSingh
• @hertschuh
• @SamanehSaadat
• @gaga1313

[SamanehSaadat]

Is this for awareness purposes or ownership?
I wish we could have some kind of round robin that assigns each PR to 1 or 2 people!

[jeffcarp]

Is this for awareness purposes or ownership?

This started because I wanted to make sure I got added as a reviewer to any PR in this repo. Then I realized I was also picking 1-2 random people each time to do PR reviews for this repo and it'd be nicer to have reviewers auto-populated.

I wish we could have some kind of round robin that assigns each PR to 1 or 2 people!

There is!
https://docs.github.com/en/enterprise-cloud@latest/organizations/organizing-members-into-teams/managing-code-review-settings-for-your-team#routing-algorithms

I enabled it for the new Core team I created. Let me know if you'd change anything.

[SamanehSaadat]

Oh, nice! Thanks for the clarification and thanks for enabling the code review feature!
qq, if you're assigned to all PRs, does it assign anyone else on the team as well?

[jeffcarp]

if you're assigned to all PRs, does it assign anyone else on the team as well?

I think setting it to * @keras-team/core @jeffcarp means I will always be added + someone from Core. I'll monitor to verify that's how it works in practice.