Update asset_tracking.rs

Co-authored-by: Ben Frankel <[email protected]>

src/asset_tracking.rs

@@ -41,8 +41,8 @@ type InsertLoadedResource = fn(&mut World, &UntypedHandle);
 
 #[derive(Resource, Default)]
 struct ResourceHandles {
-    // Not immediately useful for this template, where we wait for all assets anyway, but
-    // use VecDeque to allow assets to be loaded (or fail to load) in arbitrary order.
+    // Use a queue for waiting assets so they can be cycled through and moved to
+    // `finished` one at a time.
     waiting: VecDeque<(UntypedHandle, InsertLoadedResource)>,
     finished: Vec<UntypedHandle>,
 }