Update app.py

app.py

@@ -205,7 +205,7 @@ with demo:
         examples=[
             "What are macronutrients?",
             "What is the role of vitamins? || How do minerals affect health?",
-            "Define protein || Define carbohydrates || Define fats"
+            "Define protein? || Define carbohydrates? || Define fats?"
         ],
     )