Migrate your code from V1 to V2 Sdk (#556)

* Migratie your code from V1 to V2 Sdk

* apply various reviews

* Fix various rendering issues

* Fix typo

* Fix table legends

* Fix typo

* add link after merged PR

* sync with the CPP doc

* fix comments

* fix indentation

* Fix

* Fix comments

Author: alfred2g

README.md

@@ -11,6 +11,7 @@ This document provides information about the AWS IoT Device SDK v2 for Python. T
 * [FAQ](./documents/FAQ.md)
 * [API Docs](https://aws.github.io/aws-iot-device-sdk-python-v2/)
 * [MQTT5 User Guide](./documents/MQTT5_Userguide.md)
+* [Migration Guide from the AWS IoT SDK for Python v1](./documents/MIGRATION_GUIDE.md)
 
 
 ## Installation