Update Gradio_UI.py

Gradio_UI.py

@@ -295,8 +295,7 @@ class GradioUI:
                 }
             """
         ) as demo:
-                gr.Markdown(agent_header)
-            )
+            gr.Markdown(agent_header)
             stored_messages = gr.State([])
             file_uploads_log = gr.State([])
             chatbot = gr.Chatbot(