add comment to group spec for information around creation of addition…

…al tags

Signed-off-by: Karuppiah Natarajan <karuppiahn@vmware.com>

azure/services/groups/spec.go

@@ -51,11 +51,13 @@ func (s *GroupSpec) OwnerResourceName() string {
 func (s *GroupSpec) Parameters(existing interface{}) (interface{}, error) {
 	if existing != nil {
 		// rg already exists, nothing to update.
-		// Note that rg tags are updated separately using tags service
+		// Note that rg tags are updated separately using tags service.
 		return nil, nil
 	}
 	return resources.Group{
 		Location: to.StringPtr(s.Location),
+		// We create only CAPZ default tags. User defined additional tags
+		// are created and updated using tags service.
 		Tags: converters.TagsToMap(infrav1.Build(infrav1.BuildParams{
 			ClusterName: s.ClusterName,
 			Lifecycle:   infrav1.ResourceLifecycleOwned,