Add support for Github teams as reviewers

[mrlubos]

What has been done

• add support for Github teams in the reviewers list

How to test

• add a Github team into your reviewers list in auto_assign.yml as /{team_slug}

Todo

• add support for Github teams elsewhere?

[mrlubos]

Hey @kentaro-m, I added support for Github teams in the reviewers list as discussed in #102. Please let me know your feedback on this functionality and coding style and hopefully we can push this into master! 🚢

[kentaro-m]

Hi, @mrlubos! Thank you for adding new features. I like this feature. I added some feedback comments.

Could you add a simple description of supporting Github teams as reviewers to README.md?

Also, I think it would be easy for users to understand if you add special notes: If you use to adding reviewers as the GitHub team, Not support adding randomly.

Please check my comment and let me know if you have any questions.

[mrlubos]

Thank you for the review @kentaro-m. Yes, I will make all of those changes. Just wanted to get the ball rolling with the code first, I will document it in the next commits.

[mrlubos]

I made the requested changes @kentaro-m. Please let me know if you're happy with this!

[kentaro-m]

@mrlubos
I checked your changes. Good work!

[mrlubos]

Thank you @kentaro-m! When do you think will this be ready for use in my Github organisation?

[kentaro-m]

@mrlubos
I have already deployed the app for the new version. Now available.