Update app.py

app.py

@@ -156,6 +156,7 @@ with gr.Blocks() as demo:
 
     msg.submit(respond, inputs=[msg, chatbot_interface], outputs=[msg, chatbot_interface])
     clear.click(clear_chatbot, outputs=[chatbot_interface])
+    path_button.click(get_pdf_path, outputs=[pdf_path_display])
 
 if __name__ == "__main__":
     demo.launch()