Update app.py

app.py

@@ -39,7 +39,7 @@ class Chatbot:
         self.index = index
         openai.api_key = api_key
         self.chat_history = []
-        self.history_file = f"./chat_log.json"
+        self.history_file = f"zlmqi/index/chat_log.json"
  
     def generate_response(self, user_input):
         query_engine = index.as_query_engine(llm=llm_predictor)