fixed: Yaml indentation in example (#68)

Incorrect Yaml indentation of the storageType parameter in the "Option B" example, causing the parameter to be misinterpreted. This change has been successfully tested on Red Hat Openshift Container Platform.

docs/openshift/post-install/index.md

@@ -97,7 +97,7 @@ Based on requirements, choose one of the following options:
             #nfsServerName above is File Server Name in Prism without DNS suffix, not the FQDN.
             csi.storage.k8s.io/provisioner-secret-name: ntnx-secret
             csi.storage.k8s.io/provisioner-secret-namespace: openshift-cluster-csi-drivers
-        storageType: NutanixFiles
+            storageType: NutanixFiles
 
 2. Create a PVC yaml file like the below example and apply in the openshift-image-registry namespace (`oc -n openshift-image-registry apply -f <filename>`).