Update app.py

Update description

app.py

@@ -137,7 +137,7 @@ app = gr.Interface(
         gr.Image(label="Annotated Image")
     ],
     title="Grounding DINO Object Detection",
-    description="Provide an image URL or upload an image, then enter objects to detect."
+    description="Upload an image or provide an image URL, then enter objects to detect."
 )
 
 app.launch(server_name="0.0.0.0", server_port=7860)