Fix typo

rgb2x/gradio_demo_rgb2x.py

@@ -151,7 +151,7 @@ with gr.Blocks() as demo:
                     ]
                 ],
                 inputs=[photo, seed, inference_step, num_samples],
-                outputs=[result_gallery
+                outputs=[result_gallery],
                 fn=generate,
                 cache_mode="eager",
                 cache_examples=True,