minor event doc update: use ',' instead of '&&' in kubectl selector, as '&&' is only valid in new versions of kubectl (#2352)

Author: Tom Barnes

documentation/3.2/content/userguide/managing-domains/domain-events.md

@@ -85,7 +85,7 @@ $ kubectl get events -n [namespace] --selector=weblogic.createdByOperator=true
 To get all the events that are generated by the operator for a particular domain resource, for example `sample-domain1`, run:
 
 ```shell
-$ kubectl get events -n [namespace] --selector=weblogic.domainUID=sample-domain1&&weblogic.createdByOperator=true --sort-by=lastTimestamp
+$ kubectl get events -n [namespace] --selector=weblogic.domainUID=sample-domain1,weblogic.createdByOperator=true --sort-by=lastTimestamp
 ```
 
 #### Examples of generated events

documentation/staging/content/userguide/managing-domains/domain-events.md

@@ -85,7 +85,7 @@ $ kubectl get events -n [namespace] --selector=weblogic.createdByOperator=true
 To get all the events that are generated by the operator for a particular domain resource, for example `sample-domain1`, run:
 
 ```shell
-$ kubectl get events -n [namespace] --selector=weblogic.domainUID=sample-domain1&&weblogic.createdByOperator=true --sort-by=lastTimestamp
+$ kubectl get events -n [namespace] --selector=weblogic.domainUID=sample-domain1,weblogic.createdByOperator=true --sort-by=lastTimestamp
 ```
 
 #### Examples of generated events