.github/PULL_REQUEST_TEMPLATE.md

   1 Thanks for taking the time to contribute to Git! Please be advised that the
   2 Git community does not use github.com for their contributions. Instead, we use
   3 a mailing list (git@vger.kernel.org) for code submissions, code reviews, and
   4 bug reports. Nevertheless, you can use GitGitGadget (https://gitgitgadget.github.io/)
   5 to conveniently send your Pull Requests commits to our mailing list.
   6
   7 Please read the "guidelines for contributing" linked above!