update signal example

src/Tests/ECS/Examples/General.cs

@@ -257,14 +257,17 @@ public static void AddSignalHandler()
     var store  = new EntityStore();
     var player = store.CreateEntity(1);
     player.AddSignalHandler<CollisionSignal>(signal => {
-        Console.WriteLine($"player collision with entity: {signal.Event.other.Id}");
-        // > player collision with entity: 2
+        Console.WriteLine($"collision signal - entity: {signal.Entity.Id} other: {signal.Event.other.Id}");
     });
     var npc = store.CreateEntity(2);
     // ... detect collision. e.g. with a collision system. In case of collision:
     player.EmitSignal(new CollisionSignal{ other = npc });
 }
 
+/* Output
+collision signal - entity: 1 other: 2
+*/
+
 }
 
 }