Move command to a code-block

Put the command in a separate code block to keep things consistent

content/en/docs/tasks/run-application/configure-pdb.md

@@ -173,7 +173,10 @@ automatically responds to changes in the number of replicas of the corresponding
 
 ## Create the PDB object
 
-You can create or update the PDB object with a command like `kubectl apply -f mypdb.yaml`.
+You can create or update the PDB object using kubectl.
+```shell
+kubectl apply -f mypdb.yaml
+```
 
 ## Check the status of the PDB