Update app.py

app.py

@@ -35,7 +35,7 @@ def infer(prompt, init_image, trn_steps):
         text_embedding_optimization_steps=500,
         model_fine_tuning_optimization_steps=trn_steps)
     
-   with torch.no_grad():
+    with torch.no_grad():
         torch.cuda.empty_cache()