move SPARK_CLASSPATH setup to wiki page

README.md

@@ -137,9 +137,7 @@ For running in a Kerberos enabled cluster, the user has to include HBase related
 retrieval and renewal is done by Spark, and is independent of the connector. In other words, the user needs to initiate the
 environment in the normal way, either through kinit or by providing principal/keytab. The following examples show how to run
 in a secure cluster with both yarn-client and yarn-cluster mode. Note that if your Spark does not contain [SPARK-20059](https://github.com/apache/spark/pull/17388),
-which is in Apache Spark 2.1.1+, you need to set SPARK_CLASSPATH for both modes.
-
-    export SPARK_CLASSPATH=/usr/hdp/current/hbase-client/lib/hbase-common.jar:/usr/hdp/current/hbase-client/lib/hbase-client.jar:/usr/hdp/current/hbase-client/lib/hbase-server.jar:/usr/hdp/current/hbase-client/lib/hbase-protocol.jar:/usr/hdp/current/hbase-client/lib/guava-12.0.1.jar
+which is in Apache Spark 2.1.1+, you need to set SPARK_CLASSPATH for both modes (refer [here](https://github.com/hortonworks-spark/shc/wiki/1.-Set-SPARK_CLASSPATH)).
 
 Suppose hrt_qa is a headless account, user can use following command for kinit: