Update app.py

app.py

@@ -55,7 +55,7 @@ with gr.Blocks() as demo:
                 user_chat_input = gr.Textbox(label="User input", scale=9)
                 user_chat_submit = gr.Button("Ask/answer model", scale=1)
 
-    # First add user's message to the conversation history
+    # First add user's message to the conversation history when user presses "enter" or hits the submit button
     # Then get reply from the tutor and add that to the conversation history
     user_chat_input.submit(
         fn = add_user_message,