Fix inclusion of model_parallel document (#16197)

fix link to gpu/advanced section

Author: awaelchli

docs/source-pytorch/accelerators/gpu_advanced.rst

@@ -12,5 +12,22 @@ For experts pushing the state-of-the-art in model development, Lightning offers
 
 ----
 
-..
-    .. include:: ../advanced/model_parallel.rst
+
+.. raw:: html
+
+    <div class="display-card-container">
+        <div class="row">
+
+.. displayitem::
+   :header: Train 1 trillion+ parameter models
+   :description:
+   :col_css: col-md-4
+   :button_link: ../advanced/model_parallel.html
+   :height: 150
+   :tag: advanced
+
+
+.. raw:: html
+
+        </div>
+    </div>