Re-add model parallel tutorial

Author: Seth Weidman

index.rst

@@ -164,6 +164,11 @@ Deploying PyTorch Models in Production
 Parallel and Distributed Training
 ---------------------------------
 
+.. customgalleryitem::
+  :tooltip: Model parallel training on multiple GPUs
+  :description: :doc:`/intermediate/model_parallel_tutorial`
+  :figure: _static/img/distributed/DistPyTorch.jpg
+
 .. customgalleryitem::
   :tooltip: Getting started with DistributedDataParallel
   :description: :doc:`/intermediate/ddp_tutorial`
@@ -299,6 +304,7 @@ PyTorch Fundamentals In-Depth
    :hidden:
    :caption: Parallel and Distributed Training
 
+   intermediate/model_parallel_tutorial
    intermediate/ddp_tutorial
    intermediate/dist_tuto
    beginner/aws_distributed_training_tutorial