Add context on IngressController

Co-authored-by: Maël Valais <[email protected]>
Signed-off-by: Ashley Davis <[email protected]>

internal/controller/sync_test.go

@@ -367,7 +367,9 @@ SOME GARBAGE
 	}
 }
 
-// trivial logic that re-implements OpenShift's IngressController behavior
+// Trivial logic that re-implements OpenShift's IngressController behavior. For context,
+// the OpenShift IngressController code that deals with this is visible at:
+// https://github.com/openshift/router/blob/72114ea/pkg/router/controller/status.go
 func generateRouteStatus(route *routev1.Route, admitted bool) *routev1.Route {
 	var host string
 	if route.Spec.Host != "" {