Add Documentation-cWebAdministration.md from docx file

Created Documentation-cWebAdministration.md from [DSC Resource
Kit](http://gallery.technet.microsoft.com/scriptcenter/DSC-Resource-Kit-All-c449312d)
-- DCS Resource Kit
Wave\xWebAdministration\TechNetDocumentation-xWebAdministration.docx"
Merge pull request #64 from brettski/master

Add Documentation-cWebAdministration.md from docx file