Rename Gradio app heading to NuMarkApp

app/gradio.py

@@ -282,10 +282,11 @@ def extract(image, text, mode, template, enable_thinking):
     return gr.skip(), gr.skip(), json.loads(result)
 
 
-with gr.Blocks(title="NuExtract3") as demo:
+with gr.Blocks(title="NuMarkApp") as demo:
     gr.Markdown(
-        "# NuExtract3\n"
-        "Extract Markdown or structured JSON from an image and optional text."
+        "# NuMarkApp\n"
+        "Extract Markdown or structured JSON from an image and optional text using "
+        "[numind/NuExtract3](https://huggingface.co/numind/NuExtract3)."
     )
     with gr.Row():
         with gr.Column():