Update app.py

app.py

@@ -13,7 +13,6 @@ def respond(
     top_p,
 ):
     messages = [{"role": "system", "content": system_message}]
-    https://huggingface.co/spaces/tonybur/null
     for user_msg, assistant_msg in history:
         if user_msg:
             messages.append({"role": "user", "content": user_msg})