update dependency version doc

Author: Chuyang Deng

src/sagemaker/pytorch/README.rst

@@ -40,7 +40,7 @@ The PyTorch Docker images have the following dependencies installed:
 +-----------------------------+---------------+-------------------+-------------------+
 | Dependencies                | pytorch 0.4.0 | pytorch 1.0.0     | pytorch 1.1.0     |
 +-----------------------------+---------------+-------------------+-------------------+
-| boto3                       | >=1.7.35      | >=1.9.11          | 1.9.64            |
+| boto3                       | >=1.7.35      | >=1.9.11          | 1.9.169           |
 +-----------------------------+---------------+-------------------+-------------------+
 | botocore                    | >=1.10.35     | >=1.12.11         | >=1.12.11         |
 +-----------------------------+---------------+-------------------+-------------------+

src/sagemaker/pytorch/defaults.py

@@ -14,7 +14,7 @@
 
 PYTORCH_VERSION = '0.4'
 """Default PyTorch version for when the framework version is not specified.
-This is no longer updated so as to not break existing workflows.
+The latest PyTorch version is 1.1.0, but the default version is no longer updated so as to not break existing workflows.
 """
 
 PYTHON_VERSION = 'py3'