Update app.py

app.py

@@ -79,9 +79,9 @@ history_aware_retriever = create_history_aware_retriever(
 ### Answer question ###
 qa_system_prompt = """You are an assistant for question-answering tasks.
 Use the following pieces of retrieved context to answer the question.
-If you don't know the answer, just say that you don't know.
+If you don't know the answer, just say that you don't know. Only use data from the context.
 
-Make it and use markdown with spaces in between sentences.
+Use markdown with spaces in between sentences for readability.
 
 {context}"""
 qa_prompt = ChatPromptTemplate.from_messages(