Add Fredrik's blogpost on vendoring Qt.py

https://fredrikaverpil.github.io/2017/05/04/vendoring-qt-py/

Author: mottosso

README.md

@@ -26,6 +26,7 @@ Qt.py enables you to write software that runs on any of the 4 supported bindings
 
 - [Developing with Qt.py](https://fredrikaverpil.github.io/2016/07/25/developing-with-qt-py/)
 - [Dealing with Maya 2017 and PySide2](https://fredrikaverpil.github.io/2016/07/25/dealing-with-maya-2017-and-pyside2/)
+- [Vendoring Qt.py](https://fredrikaverpil.github.io/2017/05/04/vendoring-qt-py/)
 - [Udemy Course](https://www.udemy.com/python-for-maya/learn/v4/t/lecture/6027394)
 
 ##### Table of contents
@@ -72,7 +73,7 @@ Qt.py is a single file and can either be [copy/pasted](https://raw.githubusercon
 $ pip install Qt.py
 ```
 
-- Pro tip: Supports vendoring
+- Pro tip: Supports [vendoring](https://fredrikaverpil.github.io/2017/05/04/vendoring-qt-py/)
 
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