Update README.md
added link back to article: Cassandra Batch in Cassandra Query Language and Java
### Relevant Articles:
+
+- [Cassandra Batch in Cassandra Query Language and Java](https://www.baeldung.com/java-cql-cassandra-batch)
- [A Guide to Cassandra with Java](http://www.baeldung.com/cassandra-with-java)
- [Intro to DataStax Java Driver for Apache Cassandra](https://www.baeldung.com/cassandra-datastax-java-driver)
- [CQL Data Types](https://www.baeldung.com/cassandra-data-types)
