Update app.py

app.py

@@ -66,8 +66,9 @@ class CurriculumChatbot:
     
     def _setup_llm(self):
         try:
-            # Use Llama 3.1 8B for better quality answers
+            # Use Llama 3.1 8B with authentication token from secrets
             model_name = "meta-llama/Meta-Llama-3.1-8B-Instruct"
+            
             pipe = pipeline(
                 "text-generation",
                 model=model_name,