Update monitoring-creating-cross-project-alerting-rules-for-user-defined-projects.adoc

Author: nikijain30

modules/monitoring-creating-cross-project-alerting-rules-for-user-defined-projects.adoc

@@ -65,7 +65,7 @@ apiVersion: monitoring.coreos.com/v1
 kind: PrometheusRule
 metadata:
   name: example-security
-namespace: ns1 #<1>
+  namespace: ns1 #<1>
 spec:
   groups:
     - name: pod-security-policy