CHAOS: openshift code fix (#11655)

* chaos minor code fixes

* wip

Author: Ashutosh-Bhadauriya

docs/chaos-engineering/security/security-templates/openshift-scc.md

@@ -20,19 +20,14 @@ You can leverage all the [permissions mentioned](#run-service-account-as-a-clust
 
 ### Create a new service account
 
-Execute the below commands:
+**Note:** This procedure is for automatically created service accounts. If you're using a pre-existing user-defined service account, you can skip the service account creation step and proceed directly to linking it with the Security Context Constraint.
 
-```
-install litmus-admin service account
-```
+Execute the below commands:
 
 ```bash
-$ oc apply -f https://litmuschaos.github.io/litmus/litmus-admin-rbac.yaml
+$ oc create serviceaccount litmus-admin
 
 serviceaccount/litmus-admin created
-clusterrole.rbac.authorization.k8s.io/litmus-admin created
-clusterrolebinding.rbac.authorization.k8s.io/litmus-admin created
-
 ```
 
 ### Run service account as a cluster admin