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+################ Please use Gitlab instead of Github ###################################
+
+Hello, thank you for contributing to slixmpp!
+
+You’re about to open a pull request on github. However this github repository is not the official place for contributions on slixmpp.
+
+Please open your merge request on https://lab.louiz.org/poezio/slixmpp/
+
+You should be able to log in there with your github credentials, clone the slixmpp repository in your namespace, push your existing pull request into a new branch, and then open a merge request with one click, within 3 minutes.
+
+This will help us review your contribution, avoid spreading things everywhere and it will even run the tests automatically with your changes.
+
+Thank you.