baseline: OpenMU upstream b5a0961 (fresh source)

CONTRIBUTING.md

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+# Contributions
+
+Contributions are welcome if they meet the following criteria:
+
+* Language is english.
+
+* Code should be StyleCop compliant - this project uses the [StyleCop.Analyzers](https://www.nuget.org/packages/StyleCop.Analyzers/)
+  for VS2019 so you should see issues directly as warnings.
+
+* Coding style (naming, etc.) and quality should fit to the current state.
+
+* No code copied/converted from the well-known decompiled source of the
+  original server.
+
+If you want to contribute, please create a new issue for the feature or bug (if
+the issue doesn't exist yet) so we can see who is working on something and can
+discuss possible solutions. If it's a small thing, you can also just send a
+pull request without adding an issue.
+
+Apart of that, contributions from non-developers are welcome as well. You can
+test the server, submit issues or suggestions, packet descriptions or
+documentations about the concepts and mechanics of the game itself. Please use
+markdown files/syntax for this purpose.
+
+If you have questions about that, don't hesitate to ask in our [discord channel](https://discord.gg/2u5Agkd)
+or by submitting an issue.
+
+## How to contribute code
+
+If you want to contribute code, please do the following steps:
+
+1. fork this project from the original MUnique OpenMU Project.
+2. create a feature branch from the master branch
+3. commit your changes to your feature branch
+4. submit a pull request to the original master branch
+5. lean back, wait for the code review and merge :)