Add a AUTHORS and CONTRIBUTING file

AUTHORS

@@ -0,0 +1,12 @@
+Adriconf is written and maintained by Jean Hertel.
+
+Other authors and contributors include, but are not limited to:
+
+Balló György
+Christoph Haag
+Gert Wollny
+Harald H.
+Hugo Locurcio
+Nicolai Hähnle
+Rob Clark
+Veluri Mithun

CONTRIBUTING.md

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+# Contributing to adriconf
+
+Our project is always open to new contributions.
+Be it a code change, a bug report on even an idea, get in touch with us and we can try to help.
+
+## Reporting issues
+
+Reporting issues is a good way to contribute to the project. We always appreciate a well-written,
+thorough bug reports.
+
+Prior to raising a new issue, check out our issue list to determine whether it already include the
+problem you are facing.
+
+A good bug report shouldn't leave others needing to chase you up for more information. Please try to
+be as detailed as possible. 
+The following questions might help us better understand the issue:
+
+- What were you trying to achieve?
+- What brand and models of GPUs you have?
+- How many monitors you have?
+- Are you running X11? Maybe Wayland?
+- Are you using the latest mesa version?
+- Is your distribution and adriconf updated?
+- What are the expected results?
+- What are the received results?
+- What are the steps to reproduce the issue?
+
+## Pull requests
+
+If you prefer to make the changes you want/need and send them directly to us, we kindly
+ask you to try following the same code style.
+There is no official coding style or code standard, so this should not be a blocker,
+but please try to at least follow the same way the code is written.
+
+Your Pull Request will only be accepted if the units tests are passing, so test
+your changes before submitting it.

README.md

@@ -50,6 +50,12 @@ you will need to add it to the [mesa](https://www.mesa3d.org/) project itself.
 ## Author
 
 This tool is written and maintained by Jean Lorenz Hertel.
+To see a full list of contributos check the AUTHORS file included in the source
+code.
+
+## Contributing
+
+Check our CONTRIBUTING file for further details on how to contribute.
 
 ## License