Add CONTRIBUTING.md file

CONTRIBUTING.md

@@ -0,0 +1,33 @@
+# Guide lines for contributing to [Rdio Scanner](https://github.com/chuot/rdio-scanner)
+
+Please follow these simple guidelines to contribute to [Rdio Scanner](https://github.com/chuot/rdio-scanner). Discuss the change first through [GitHub Issues](https://github.com/chuot/rdio-scanner/issues), email, or any other method with the [owner and project manager](https://github.com/chuot).
+
+## Support requests or general question
+
+Any support request or general question is welcome in the [Gitter Rdio Scanner Lobby](https://gitter.im/rdio-scanner/Lobby). Do not create an issue for this, it will be rejected and closed immediately.
+
+Helping others on the (https://github.com/chuot/rdio-scanner/wiki) is a good way for contributing to the project.
+
+## Wiki pages
+
+Any contribution to the [Rdio Scanner Wiki](https://github.com/chuot/rdio-scanner/wiki) is welcome and encouraged. It is impossible for the [owner and project manager](https://github.com/chuot) to cover all the [Rdio Scanner](https://github.com/chuot/rdio-scanner) use cases, sharing your own use cases with guided instructions will for sure benefit others.
+
+Any contribution to the [Rdio Scanner Wiki](https://github.com/chuot/rdio-scanner/wiki) is welcome and encouraged.
+
+It is also not possible for the [owner and project manager](https://github.com/chuot) to cover all the [Rdio Scanner](https://github.com/chuot/rdio-scanner) use cases, sharing your own use cases with guided instructions is sure to benefit others.
+
+## Random Pull Requests
+
+To keep the project stable and well organized, random pull requests will be rejected if no issue have been previously opened and assigned first by the [owner and project manager](https://github.com/chuot).
+
+## Bugs and feature requests
+
+We use [GitHub Issues](https://github.com/chuot/rdio-scanner/issues) to track bugs and feature requests.
+
+Open an [issue](https://github.com/chuot/rdio-scanner/issues) that best describes the bug or feature request.
+
+For **bugs**, describe the environment in which you encounter it and explain step by step how to reproduce them.
+
+For **feature requests**, describe the reason and use case.
+
+Most of the time, the issue will be assigned to the [owner and project manager](https://github.com/chuot) and then resolved in a timely manner. In some cases, the issue will be identified as _help needed_ and then assigned to a volonteer contributor. Again, pull requests will be rejected if they are not related to a previously opened and assigned issue.

README.md

@@ -43,6 +43,7 @@ The server side of [Rdio Scanner](https://github.com/chuot/rdio-scanner) can mon
 - [docs/webapp.md](./docs/webapp.md) - How to operate the frontend interface
 - [docs/api.md](./docs/api.md) - [Rdio Scanner](https://github.com/chuot/rdio-scanner) API's reference
 - [docs/examples](./docs/examples) - Some miscellaneous examples
+- [CONTRIBUTING.md](./CONTRIBUTING.md) - Contribution guidelines
 
 ## Questions / Comments