Add placeholders

app.py

@@ -78,9 +78,14 @@ def run(space_name: str, model_names_str: str, hf_token: str, title: str,
 gr.Interface(
     fn=run,
     inputs=[
-        gr.Textbox(label='Space Name'),
-        gr.Textbox(label='Model Names'),
-        gr.Textbox(label='HF TOKEN'),
+        gr.Textbox(label='Space Name', placeholder='<user_name>/<space_name>'),
+        gr.Textbox(label='Model Names',
+                   placeholder='e.g. microsoft/resnet-50'),
+        gr.Textbox(
+            label='Hugging Face Token',
+            placeholder=
+            'This should be a token with write permission. See: https://huggingface.co/settings/tokens'
+        ),
         gr.Textbox(label='Title (Optional)'),
         gr.Textbox(label='Description (Optional)'),
         gr.Textbox(label='Article (Optional)'),