Kashif Rafique

Added a course link via this pull request. https://github.com/vicky002/AlgoWiki/pull/112/commits/ddc8b72ad14ea5f5f23744d1f7745c6944675665 These types of courses can be added here? https://www.edx.org/course/windows-server-2016-infrastructure-microsoft-inf211x-0 https://www.edx.org/course/windows-server-2016-advanced-microsoft-inf219x

@vicky002 Basically both courses are free. You only need to pay if you want to get a Verified Certificate. 

CodeSchool is now part of Pluralsight; a paid platform.  [Try R - CodeSchool](http://tryr.codeschool.com/) should be removed as it is redirecting to a paid resource i.e. https://www.pluralsight.com/search?q=R. Removed via following...