Add token requirement for creating and cloning

app.py

@@ -40,6 +40,9 @@ with gr.Blocks() as demo:
 This space allows you to clone a <a href="https://huggingface.co/docs/hub/collections">Collection</a> from the Hugging Face Hub into your own namespace.
 You can then edit the collection to your liking!</p>"""
     )
+    gr.Markdown(
+        "Token is required to create a new collection and clone private collections. You can get your token from your [profile page](https://huggingface.co/settings/token)."
+    )
     with gr.Row():
         token = gr.Textbox(
             label="Token",