DOC-2813 (datastax#1145)

Added error handling blog reference.

README.rst

@@ -66,6 +66,10 @@ Contributing
 ------------
 See `CONTRIBUTING <https://github.com/scylladb/python-driver/blob/master/CONTRIBUTING.rst>`_.
 
+Error Handling
+------------
+While originally written for the Java driver, users may reference the `Cassandra error handling done right blog <https://www.datastax.com/blog/cassandra-error-handling-done-right>`_ for resolving error handling scenarios with Apache Cassandra.
+
 Reporting Problems
 ------------------
 Please report any bugs and make any feature requests by clicking the New Issue button in