Update app.py

app.py

@@ -591,7 +591,7 @@ This dashboard combines two powerful learning optimization approaches:
 - **Preset Parameters**: These are pre-calibrated values based on research data that define the underlying models
   - FSRS Model Parameters: Define the mathematical model for spaced repetition intervals
   - Multimodal Weights: Define the effectiveness of different learning modalities
-  - Those preset parameters are for future learner personal learning patters, since all of them are customized parameters, I leave default values here for now.
+  - ##Those preset parameters are for future learner personal learning patters, since all of them are customized parameters, I leave default values here for now.
   
 - **Customizable Settings**: These are parameters you can adjust based on your specific learning scenario
   - Learning Period & Time: How long and how much time per day you plan to study