Update app.py

app.py

@@ -178,4 +178,4 @@ with gr.Blocks() as app:
     source_tog.change(shuf,[source_tog],[im_box,vid_box],cancels=[vid_proc,im_proc,im_load,vid_load])
 
     #go_btn_url.click(rev_im,inp_url,[html_out])
-app.queue(concurrency_limit=20).launch()
+app.queue(default_concurrency_limit=20).launch()