Created CONTRIBUTING.md

And introducing the develop branch

CONTRIBUTING.md

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+# Contributing to hanobo
+
+:+1::tada: First off, thanks for taking the time to contribute! :tada::+1:
+
+The following is a set of guidelines for contributing to hanobo. Use your best judgment, and feel free to propose changes to this document in a pull request.
+
+## Issues
+
+Go ahead and create an issue for bugs or feature requests. 
+For bugs please add the following info.
+
+* Home Assistant version
+* hanobo version
+* error messages from the log
+* other info that might be of interest, like how often or what you did to make it fail
+
+## Pull Requests
+
+Pull Requets should be made to the develop branch, not the master branch. 
+This allows a testing to be done a bit easier before new changes are "released" to the master branch.
+
+Recommended procedure:
+
+* Fork this repo
+* Check out the develop branch
+* Do your changes and confirm that it runs as expected
+* Commit your changes, either to your develop branch or a separate feature branch
+* Create a pull request from your branch to the [hanobo develop](https://github.com/echoromeo/hanobo/tree/develop) branch