Update app.py

app.py

@@ -101,7 +101,7 @@ with gr.Blocks() as demo:
                 video_output = gr.outputs.Image(type="pil", label="grounding results")
                 vqa_output_video = gr.Textbox(label="Answer")
                 
-     with gr.Tab("Webcam"):
+    with gr.Tab("Webcam"):
         with gr.Row():
             with gr.Column():
                 cam_input = gr.Video(label='input video', mirror_webcam=False, source="webcam")