Update app.py

app.py

@@ -9,7 +9,7 @@ This chatbot is based on the contents of https://www.gradio.app/guides/creating-
 """
 client = InferenceClient("HuggingFaceH4/zephyr-7b-beta")
 def simple_respond(message,history):
-    return f "I always respond with 'Hi,' regardless of the message that is passed to me, like {message}"
+    return f"I always respond with 'Hi,' regardless of the message that is passed to me, like {message}"
 
 """
 For information on how to customize the ChatInterface, peruse the gradio docs: https://www.gradio.app/docs/chatinterface