Update app.py

app.py

@@ -780,7 +780,7 @@ def create_quiz_interface():
                     choices=["Basic", "Intermediate", "Advanced"],
                     value="Basic",
                     label="Select Difficulty Level",
-                    info="Basic: 5 questions | Intermediate: 10 questions | Advanced: 20 questions"
+                    info="Basic: 5 questions | Intermediate: 10 questions | Advanced: 20 questions"]
                 
                 # Add clear button
                 clear_btn = gr.Button("Clear Learning Content", variant="secondary", size="sm")