Contribution guide

.github/CONTRIBUTING.md

@@ -0,0 +1,43 @@
+# Contributing to Chatto
+
+## Asking a Question
+
+Please don't file an issue just to ask a question.
+You'll get a faster response in [our Gitter room](https://gitter.im/chatto-framework/community)
+
+## Reporting a Bug
+
+### Before Submitting a Bug Report
+
+- **Make sure you're on the latest version.** If you're not on the most recent version, your problem may have been solved already. Upgrading is always the best first step.
+- **Try older versions.** If you're already on the latest release, try rolling back a few minor versions and see if the problem goes away. This will help devs narrow down when the problem first arose in the commit log.
+- **Try searching the [list of opened issues](https://github.com/badoo/Chatto/issues?q=is%3Aissue+is%3Aopen)** to see if the problem has already been reported. If it has, please add a comment to the existing issue instead of opening a new one.
+
+### What To Put In Your Bug Report
+
+Explain the problem and include additional details to help maintainers reproduce the problem:
+
+- **Use a clear and descriptive title** for the issue.
+- **Describe the exact steps to reproduce the problem** in as many details as possible.
+- **Provide code samples.**
+- **Include screenshots and animated GIFs** which could clearly demonstrate the problem. You can use [this tool](https://www.cockos.com/licecap/) to capture GIFs on macOS
+- **Explain which behaviour you expect to see and why.**
+- **Provide information about your environment.**
+    - Chatto version
+    - iOS version
+    - Xcode version
+- **Add info how Chatto is intergrated** to your project. Is it CocoaPods, Carthage or manual?
+
+## Contributing Changes
+
+If you'd like to introduce new functionality or fix a bug, it's always best to discuss it with us in [our Gitter room](https://gitter.im/chatto-framework/community).
+
+When creating a pull request please consider following:
+
+- **Always make a new branch** for your work. This makes it easier for others to take just one set of changes form your repository.
+- **Please do not submit unrelated changes** in the same pull request.
+- **Use a clear and descriptive title** for the pull request.
+- **Describe a clear list of things** that you have done in this pull request.
+- **Include relevant issue number** if applicable.
+- **Consider enabling "Allow edits by maintainers" checkmark.** So we could push additional changes in your pull request.
+- **Consider adding unit tests.** We'd be really grateful if you add unit test for your feature/bugfix!

README.md

@@ -23,6 +23,12 @@
 
 Check the [wiki!](https://github.com/badoo/Chatto/wiki)
 
+## How to contribute
+
+If you **just have a question**, please reach us in [our gitter room](https://gitter.im/chatto-framework/community)
+
+If you'd like to file a bug report, suggest changes or submit a pull request, please [check our contribution guide](.github/CONTRIBUTING.md)
+
 ## How to install
 ### CocoaPods