Update app.py

app.py

@@ -123,7 +123,7 @@ def predict_brain_age(nifti_file, actual_age, sex):
 with gr.Blocks() as demo:
     gr.Markdown("""
     # 🧠 **BrainAgeNeXt**: Advancing Brain Age Modeling
-    Upload a preprocessed T1w MRI scan (.nii.gz), enter the age and sex of the subject, and get the brain age prediction.
+    Upload a preprocessed T1w brain MRI scan (.nii.gz format), enter the age and sex of the subject, and get the brain age prediction.
 
     The following preprocessing steps are required.
     1. Skull-stripping using [SynthStrip](https://surfer.nmr.mgh.harvard.edu/docs/synthstrip/) with the `--no-csf` flag for optimal results.