Add reference to PyTorch Estimators in the table of contents. (#244)

Author: nadiaya

README.rst

@@ -28,10 +28,11 @@ Table of Contents
 3. `MXNet SageMaker Estimators <#mxnet-sagemaker-estimators>`__
 4. `TensorFlow SageMaker Estimators <#tensorflow-sagemaker-estimators>`__
 5. `Chainer SageMaker Estimators <#chainer-sagemaker-estimators>`__
-6. `AWS SageMaker Estimators <#aws-sagemaker-estimators>`__
-7. `BYO Docker Containers with SageMaker Estimators <#byo-docker-containers-with-sagemaker-estimators>`__
-8. `SageMaker Automatic Model Tuning <#sagemaker-automatic-model-tuning>`__
-9. `BYO Model <#byo-model>`__
+6. `PyTorch SageMaker Estimators <#pytorch-sagemaker-estimators>`__
+7. `AWS SageMaker Estimators <#aws-sagemaker-estimators>`__
+8. `BYO Docker Containers with SageMaker Estimators <#byo-docker-containers-with-sagemaker-estimators>`__
+9. `SageMaker Automatic Model Tuning <#sagemaker-automatic-model-tuning>`__
+10. `BYO Model <#byo-model>`__
 
 
 Getting SageMaker Python SDK
@@ -124,6 +125,7 @@ Later sections of this document explain how to use the different Estimators and
 * `MXNet SageMaker Estimators and Models <#mxnet-sagemaker-estimators>`__
 * `TensorFlow SageMaker Estimators and Models <#tensorflow-sagemaker-estimators>`__
 * `Chainer SageMaker Estimators and Models <#chainer-sagemaker-estimators>`__
+* `PyTorch SageMaker Estimators <#pytorch-sagemaker-estimators>`__
 * `AWS SageMaker Estimators and Models <#aws-sagemaker-estimators>`__
 * `Custom SageMaker Estimators and Models <#byo-docker-containers-with-sagemaker-estimators>`__