Update app.py

app.py

@@ -143,6 +143,6 @@ ref_art = gr.Interface(fn=qa_retrieve_art, label="mpnet Articles",
 # ref_yt = gr.Interface(fn=qa_retrieve_yt, label="Youtube",
 #                      inputs=gr.inputs.Textbox(lines=5, label="what would you like to learn about?"),
 #                      outputs = gr.components.JSON(label="youtube"),title = "youtube", examples=examples)
-demo = gr.Parallel( ref_art_1, ref_art_1)
+demo = gr.Parallel( ref_art_1, ref_art)
 
 demo.launch()