update app

app.py

@@ -54,8 +54,8 @@ def infer(
 
     NOTE: `image_b64` is the fully FLATTENED board sent by the frontend —
     the free-hand sketch, every sticker/asset, every text object AND every
-    line/arrow/shape are already composited into this single PNG, so all
-    of them are reflected in the conditioning image passed to the pipeline.
+    line/arrow/shape are already composited into this single PNG, so all of
+    them are reflected in the conditioning image passed to the pipeline.
     """
     gc.collect()
     torch.cuda.empty_cache()