RFC: Adding information on how to contribute to this GitHub repository

[Robyt3]

This would include for example

• File outlining how to write issues and pull requests.
  • This file should also be part of the documentation repository (https://github.com/teeworlds/documentation/issues/25). Also see further comments there.
• Issue template
• Pull request template, including
  • Describe changes
  • Include screenshots for visual changes
  • Create a separate pull request to update the documentation, if adding commands, settings etc.

See https://docs.github.com/en/communities/setting-up-your-project-for-healthy-contributions/setting-guidelines-for-repository-contributors

[oy]

Sounds good 👍