How to set reviewers for an issue in github projects

[jhu7235]

I have a project in https://github.com/orgs/orgX/projects/1 and I see a field for "Reviewers". It's a reserved field, so I can't manually set it. I am wondering how that value is set. Currently, it doesn't look like it is setting.

[AlefMemTav]

See it: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/requesting-a-pull-request-review

[jfullstackdev]

from the link provided above, let me highlight this