Creating a pull request template for your repository - GitHub Docs
For more information, see " About issue and pull request templates." You can create a PULL_REQUEST_TEMPLATE/ subdirectory in any of the supported folders to contain multiple pull request templates, and use the template query parameter to specify the template that will fill the pull request body.
https://docs.github.com/en/communities/using-templates-to-encourage-useful-issues-and-pull-requests/creating-a-pull-request-template-for-your-repository
