Added explanation

app.py

@@ -302,8 +302,18 @@ if __name__ == "__main__":
     if not args.no_gradio_queue:
         block = block.queue()
 
+css = """
+  #mkd {
+    height: 500px; 
+    overflow: auto; 
+    border: 1px solid #ccc; 
+  }
+"""
+with gr.Blocks(css=css) as demo:
+    
+        gr.HTML("<h1><center>Grounded Segment Anything<center><h1>")
+        gr.HTML("<h3><center>This is the demo for [Grounded Segment Anything](https://github.com/IDEA-Research/Grounded-Segment-Anything), which combines Segment Anything Model with Grounding DINO.</h3>")
 
-with block:
         with gr.Row():
             with gr.Column():
                 input_image = gr.Image(