Update app.py

app.py

@@ -892,9 +892,9 @@ if __name__ == "__main__":
 
         ## Step 2 – Match the high-resolution reference
 
-        - You will see **one reference image on the left**.  
+        - You will see **one reference image at the top**.  
         This is the **high-resolution (HR) reference**.
-        - On the right, you will see the **same {NUM_IMAGES_TO_RANK} images** again.
+        - At the bottom, you will see the **same {NUM_IMAGES_TO_RANK} images** again.
         - Click the image that looks **most similar to the HR reference** first (rank 1),
         then the next most similar, and so on, until **all images are ranked**.