add context title reference

app.py

@@ -230,7 +230,7 @@ Do not reveal your internal reasoning. Provide only the final answer.
 Structure your answer in the following format:
 Summary — A brief, high‑level answer.
 Supporting Details — Explain using information only from the provided context.
-Context References — Quote or cite the exact context segments that support your answer (if applicable).
+Context References — Quote or cite the exact context segments that support your answer (if applicable). Context reference should include the title of the document referred to.
 
 Context:
 {context}