Code of Conduct

• I have read and agree to the GitHub Docs project's Code of Conduct

What article on docs.github.com is affected?

https://docs.github.com/en/developers/webhooks-and-events/webhooks/webhook-events-and-payloads

What part(s) of the article would you like to see updated?

Add information about the new pull_request_review_thread event.

The event is currently sent when you mark a discussion on a pull request review as resolved, or unresolved.

Additional information

Example payloads can be found in octokit/webhooks#594
X-Ref: octokit/webhooks#594, octokit/webhooks#593