Update app.py

app.py

@@ -166,7 +166,7 @@ def initialize_llmchain(llm_model, temperature, max_tokens, top_k, vector_db, pr
     """#Standalone question:"""
     
     PROMPT = PromptTemplate(
-        input_variables=["requirement","context", "chat_history"]#, "question"], 
+        input_variables=["requirement","context", "chat_history"],#, "question"], 
         template=template
     )