update textbox desc

app.py

@@ -112,8 +112,8 @@ with gr.Blocks() as demo:
         </p>
     </div>""")  
   with gr.Row():
-    question = gr.Textbox(label = 'Type in your questions about Gradio here', placeholder = 'What is the role of "every" argument in a component')
-    openai_api_key = gr.Textbox(type='password')
+    question = gr.Textbox(label = 'Type in your questions about Gradio here and press Enter!', placeholder = 'What is the role of "every" argument in a component')
+    openai_api_key = gr.Textbox(type='password', label="Enter your OpenAI API key here")
   state = gr.State()
   chatbot = gr.Chatbot()
   question.submit(chat, [question, state, openai_api_key], [chatbot, state])