Update app.py

app.py

@@ -903,4 +903,4 @@ if __name__ == "__main__":
     if USE_COLAB:
         print("Running in colab mode")
 
-    interface.queue(concurrency_count=2, max_size=20).launch(share=USE_COLAB)
+    interface.queue(max_size=20).launch(share=USE_COLAB, show_api=True)