[Tutorial][PTD] Deprecate Training Transformer models using Distributed Data Parallel and Pipeline Parallelism and redirect the page to parallelism APIs (#3145)

* redirect transformer pipeline
* Update advanced_source/ddp_pipeline.rst

---------

Co-authored-by: Svetlana Karslioglu <svekars@meta.com>

Author: wz337

advanced_source/ddp_pipeline.rst

@@ -0,0 +1,10 @@
+Training Transformer models using Distributed Data Parallel and Pipeline Parallelism
+====================================================================================
+
+This tutorial has been deprecated.
+
+Redirecting to the latest parallelism APIs in 3 seconds...
+
+.. raw:: html
+
+   <meta http-equiv="Refresh" content="3; url='https://pytorch.org/tutorials/beginner/dist_overview.html#parallelism-apis'" />