Update app.py

app.py

@@ -139,7 +139,7 @@ def load_model():
     return pipe, tokenizer
 
 def ask_model(question, context, pipe, tokenizer):
-    prompt = f"""Use only the following context to answer. If uncertain, say "I don't know."
+    prompt = f"""Use only the following context to answer. If uncertain, say \"I don't know.\"
 
 <context>
 {context}