Merge Pull Request

Merges a pull request into the base branch. This endpoint triggers [notifications](https://docs.github.com/[email protected]/github/managing-subscriptions-and-notifications-on-github/about-notifications). Creating content too quickly using this endpoint may result in secondary rate limiting. For more information, see "[Rate limits for the API](https://docs.github.com/[email protected]/rest/overview/rate-limits-for-the-rest-api#about-secondary-rate-limits)" and "[Best practices for usi...