Show a tip for Hugging Face Spaces token

app.py

@@ -90,7 +90,10 @@ with gr.Blocks(theme=theme) as iface:
                 value=os.environ.get("GSK_API_KEY"),
                 placeholder="gsk-xxxxxxxxxxxxxxxxxxxxxxxxxxxx",
             )
-            hf_token_input = gr.Textbox(label="Hugging Face Spaces Token")
+            hf_token_input = gr.Textbox(
+                label="Hugging Face Spaces Token",
+                info="if using a private Giskard Hub on Hugging Face Spaces",
+            )
 
         output = gr.Textbox(label="Status")
     with gr.Row():