corrected typo in a sub heading

Author: barkhachoithani

README.md

@@ -273,7 +273,7 @@ kubectl logs pod/terminated-host-pod-name
 
 If you are permanently removing the host from the MarkLogic cluster, once the pod is terminated, follow standard MarkLogic administrative procedures using the administrative UI or APIs to remove the MarkLogic host from the cluster. Also, because Kubernetes keeps the Persistent Volume Claims and Persistent Volumes around until they are explicitly deleted, you must manually delete them using the Kubernetes APIs before attempting to scale the hosts in the StatefulSet back up again.
 
-## Deploying a Multiple MarkLogic Cluster with Multiple Groups
+## Deploying a MarkLogic Cluster with Multiple Groups
 
 To deploy a MarkLogic cluster with multiple groups (separate E and D nodes for example) the `bootstrapHostName` and `group.name` must be configured in values.yaml or set the values provided for these configurations using the `--set` flag while installing helm charts.
 For example, if you want to create a MarkLogic cluster with three nodes in a "dnode" group and two nodes in an "enode" group, start with the following helm command: