Merge remote-tracking branch 'origin/modernization' into modernization

Author: aoberoi

README.rst

@@ -189,7 +189,10 @@ For details, see the reference documentation at
 Development and Contributing
 ----------------------------
 
-Interested in contributing? We <3 pull requests! File a new
+Interested in contributing? We :heart: pull requests! See the `Development <DEVELOPING.md>`_ and
+`Contribution <CONTRIBUTING.md>`_ guidelines.
+
+File a new
 `Issue <https://github.com/opentok/opentok-python-sdk/issues>`_ or take a look at the existing ones.
 If you are going to send us a pull request, please try to run the test suite first and also include
 tests for your changes.