Updated nw-networkpolicy-project-defaults.adoc

Updated Adding network policies to the new project template steps 2 YAML file.

Author: adityasonittyl

modules/nw-networkpolicy-project-defaults.adoc

@@ -46,7 +46,7 @@ objects:
   metadata:
     name: allow-from-same-namespace
   spec:
-    podSelector:
+    podSelector: {}
     ingress:
     - from:
       - podSelector: {}