Update app.py

app.py

@@ -218,8 +218,8 @@ with gr.Blocks() as demo:
     video_button_detect.click(inference2, inputs=[video_input,video_drop,
                                            video_iou_threshold,video_conf_threshold],            
                                         outputs=[video_output,fps_video])
-	video_button_track.click(inference2, inputs=[video_input,video_drop,
-                                           video_iou_threshold,video_conf_threshold],            
-                                        outputs=[video_output,fps_video])
+    video_button_track.click(inference2, inputs=[video_input,video_drop,
+                                                 video_iou_threshold,video_conf_threshold],          
+                             outputs=[video_output,fps_video])
 
 demo.launch(debug=True,enable_queue=True)