Add CODEOWNERS information

[brianamarie]

The 2.11 release of GitHub Enterprise brought CODEOWNERS to the center stage. This is something we get a lot of questions about in class, so we want to cover it.

Existing documentation:

• Codeowners help docs
• Introducing Code Owners (Blog post)

@githubtraining/trainers Do you think this would be best to include as a:

• 👍 New activity
• ❤️ Mentioned feature in Getting Started where we call out other important files
• 🎉 Mentioned optional feature/activity combo in an appendix

@githubtraining/trainers Please emoji vote soon, and let me know if you have any questions. 🎈

[hollenberry]

👋 No strong feelings on how we should approach, but want to drop this stale PR in for reference:

#51

[brianamarie]

👋 No strong feelings on how we should approach, but want to drop this stale PR in for reference:

#51

@hollenberry Thanks! I think the activity in this PR could be a good option if we choose 👍 new activity or 🎉 optional activity in the appendix.

@hollenberry & @githubtraining/trainers Friendly bump, please do emoji vote on the original post with your thoughts.

[crichID]

@brianamarie thank you for the bump. Students in my last few classes have been very interested in these features so I think it is worth a short activity but let's give the team another day to emoji vote and then we can make a decision. I did edit #51 a little to see if we could add the activity to github-games and whittle it down to 5 minutes or less.

[brianamarie]

@githubtraining/trainers Based on the existing PR and current level of feedback, I'm going to close this issue.