add duplicate spaces badge

app.py

@@ -54,6 +54,13 @@ This gradio demo is for a simple experience of T2I-Adapter:
 
 with gr.Blocks(css='style.css') as demo:
     gr.Markdown(DESCRIPTION)
+    
+    gr.HTML("""
+    <p>For faster inference without waiting in queue, you may duplicate the space and upgrade to GPU in settings.
+    <br/>
+    <a href="https://huggingface.co/spaces/Adapter/T2I-Adapter?duplicate=true">
+    <img style="margin-top: 0em; margin-bottom: 0em" src="https://bit.ly/3gLdBN6" alt="Duplicate Space"></a>
+    <p/>""")
 
     with gr.Tabs():
         with gr.TabItem('Keypose'):