Update app.py

app.py

@@ -775,4 +775,4 @@ if __name__ == '__main__':
 
         demo.load(load_demo, None, [dialog_state, input_state])
 
-    demo.launch(server_name='0.0.0.0', server_port=80, enable_queue=True)
+    demo.launch(enable_queue=True)