add example links for model hub

README.md

@@ -75,9 +75,9 @@ pinned: false
       <li class="my-4">Models from other model hubs
          <ul class="lg:col-span-2" style="list-style: circle inside">
             <li class="my-4">Tensorflow Hub</li>
-            <li class="my-4">Pytorch Hub</li>
-            <li class="my-4">ONNX model Hub</li>
-            <li class="my-4">PaddlePaddle Model Hub</li>
+            <li class="my-4">Pytorch Hub: see example demos at https://huggingface.co/pytorch</li>
+            <li class="my-4">ONNX model Hub: see example demos at https://huggingface.co/onnx</li>
+            <li class="my-4">PaddlePaddle Model Hub: see example demos at https://huggingface.co/PaddlePaddle</li>
          </ul>
       </li>
       <li class="my-4">participant ideas</li>