Update app.py

app.py

@@ -10,7 +10,7 @@ This tool is designed to assist you with two main tasks:
 1. **Channel Mapping**: Align your EEG channels with our template channels to ensure compatibility with our models.
 2. **EEG Data Denoising**: Use our pre-trained models—**ART**, **IC-U-Net**, **IC-U-Net++**, and **IC-U-Net-Attn**—to denoise your EEG data.
 
-### File Requirements and Preparation
+## File Requirements and Preparation
 - **Channel locations**: If you don't have the channel location file, we recommend you to download the standard montage <a href="">here</a>. If the channels in those files don't match yours, you can use **EEGLAB** to adjust them to your required montage.
 - **Raw data**: The data need to be a two-dimentional array (channel, timepoint).
 - **Channel requirements**: Your data must include some channels that correspond to our template channels, which include: ``Fp1, Fp2, F7, F3, Fz, F4, F8, FT7, FC3, FCz, FC4, FT8, T7, C3, Cz, C4, T8, TP7, CP3, CPz, CP4, TP8, P7, P3, Pz, P4, P8, O1, Oz, O2``. At least some of them need to be present for successful mapping. Additionally, please remove any reference, ECG, EOG, EMG... channels before uploading your files.