Update README.md

README.md

@@ -24,6 +24,7 @@ Adding a Gradio Space
 <div>
   <ol>
     <li>Setup Gradio demo under your username</li>
+    <li>See list of models to add here: https://github.com/AK391/PaddleHub/tree/PaddlePaddle-release/v2.2/modules</li>
     <li>Send request to join organization</li>
     <li>Once approved, transfer demo to PaddlePaddle Organization</li>
   </ol>