Update README.rst

Author: andremoeller

README.rst

@@ -75,7 +75,7 @@ Supported Python Versions
 SageMaker Python SDK is tested on:
 
 - Python 2.7
-- Python 3.5
+- Python 3.6
 
 AWS Permissions
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@@ -103,8 +103,8 @@ You can install the libraries needed to run the tests by running :code:`pip inst
 
 
 We run unit tests with tox, which is a program that lets you run unit tests for multiple Python versions, and also make sure the
-code fits our style guidelines. We run tox with Python 2.7 and 3.5, so to run unit tests
-with the same configuration we do, you'll need to have interpreters for Python 2.7 and Python 3.5 installed.
+code fits our style guidelines. We run tox with Python 2.7 and 3.6, so to run unit tests
+with the same configuration we do, you'll need to have interpreters for Python 2.7 and Python 3.6 installed.
 
 To run the unit tests with tox, run: