added contribution guide

CONTRIBUTING.md

@@ -0,0 +1,26 @@
+# Contribute to EasyEngine (ee)
+
+This guide details how to use issues and pull requests to improve EasyEngine (ee).
+
+## How to report issue:
+
+Github issue-tracker is used **only** for report bugs and feature request.
+
+Please attach the output of following command when open a new issue/bug
+```bash
+lsb_release -a
+ee -v
+ee info
+wp --allow-root --info
+```
+
+### EasyEngine chat:
+Developer & contributor discussion: https://gitter.im/rtCamp/easyengine
+
+
+### EasyEngine support request:
+For support-request please use - http://community.rtcamp.com/c/easyengine
+
+
+### Pull Requests:
+When submitting your code please follow this coding standerds - http://docs.rtcamp.com/easyengine/dev/python/