Update app.py

app.py

@@ -299,5 +299,5 @@ with gr.Blocks(theme=gr.themes.Default(primary_hue='orange', secondary_hue='gray
     msg.submit(**chat_btn_args)
 
 demo.queue(default_concurrency_limit=10)
-gradio_auth=None # comment this if you want to use Authentication
+# gradio_auth=None # comment this if you want to use Authentication
 demo.launch(show_error=True, auth=gradio_auth)