Merge pull request #21 from wyugue/patch-1

Adds Vagrant Online Courses at Classpert

README.md

@@ -83,6 +83,7 @@ for any IP address.
 * [Working with Advanced Vagrant features in PhpStorm.](http://confluence.jetbrains.com/display/PhpStorm/Working+with+Advanced+Vagrant+features+in+PhpStorm)
 * [Sharing Your Virtual Machine on the Web with Vagrant Share](https://scotch.io/tutorials/sharing-your-virtual-machine-on-the-web-with-vagrant-share).
 * [Programming Community Curated Resources for Learning Vagrant](https://hackr.io/tutorials/learn-vagrant)
+* [Vagrant Online Courses at Classpert](https://classpert.com/vagrant) List of Vagrant Online Courses (free and paid)
 
 ## Books