Update app.py

app.py

@@ -167,7 +167,7 @@ demo_images = [
 
 # Create Gradio interface
 with gr.Blocks() as iface:
-    gr.Markdown("# Document corner detection and perspective correction")
+    gr.Markdown("## Document corner detection and perspective correction")
     gr.Markdown("Upload an image to detect the corners of a document and correct the perspective.\n\nUses a UNet model to detect corners and OpenCV to correct the perspective.")
     
     with gr.Row():