Update README with steps to start services.
Update README with steps to start services.

Change-Id: I6a7213ab974b0f275940908189ed5a05c44ab217
Reviewed-on: http://gerrit.sjc.cloudera.com:8080/6445
Tested-by: jenkins
Reviewed-by: Nong Li <99a5e5f8f5911755b88e0b536d46aafa102bed41@cloudera.com>

cloudera/RecordServiceClient,cloudera/RecordServiceClient,cloudera/RecordServiceClient,cloudera/RecordServiceClient,cloudera/RecordServiceClient