Add links in Readme to ScalaDocs
Add links in Readme to ScalaDocs

ponkin/spark-cassandra-connector,maasg/spark-cassandra-connector,maasg/spark-cassandra-connector,christobill/spark-cassandra-connector,shashwat7/spark-cassandra-connector,ponkin/spark-cassandra-connector,datastax/spark-cassandra-connector,datastax/spark-cassandra-connector,shashwat7/spark-cassandra-connector,christobill/spark-cassandra-connector