Update audit.md

content/en/docs/tasks/debug/debug-cluster/audit.md

@@ -145,10 +145,12 @@ You can configure the log audit backend using the following `kube-apiserver` fla
 
 If your cluster's control plane runs the kube-apiserver as a Pod, remember to mount the `hostPath`
 to the location of the policy file and log file, so that audit records are persisted. For example:
-```shell
+
+```yaml
     --audit-policy-file=/etc/kubernetes/audit-policy.yaml
     --audit-log-path=/var/log/kubernetes/audit/audit.log
 ```
+
 then mount the volumes:
 
 ```yaml