Adding Pearson to the advanced slides as per discussion with @jordanmccu...

...llough
@peterbell, Could we put the "distributor" name in the link so folks know where it leads? Something such as this that parallels the *O'Reilly video series* link:

[Git and GitHub, InformIt LiveLessons Workshop](http://www.informit.com/store/git-and-github-livelessons-workshop-9780133991772)