Migrate content from workflow and pytorch readmes into sphinx project (#700)

Author: eslesar-aws

CHANGELOG.rst

@@ -2,6 +2,12 @@
 CHANGELOG
 =========
 
+1.18.6dev
+=========
+
+* doc-fix: Move workflow and PyTorch readme content into sphinx project
+* doc-fix: Fix broken links in using_tensorflow.rst
+
 1.18.5
 ======
 

doc/index.rst

@@ -80,6 +80,11 @@ PyTorch
 *******
 A managed environment for PyTorch training and hosting on Amazon SageMaker
 
+.. toctree::
+    :maxdepth: 1
+
+    using_pytorch
+
 .. toctree::
     :maxdepth: 2
 
@@ -140,6 +145,11 @@ Workflows
 *********
 SageMaker APIs to export configurations for creating and managing Airflow workflows.
 
+.. toctree::
+    :maxdepth: 1
+
+    using_workflow
+
 .. toctree::
     :maxdepth: 2