DataScienceSpecialization/DataScienceSpecialization.github.io — pull request #13 by thoughtfulbloke (2014-08-18 09:43:17+00:00)
Title: Slidify for DDP, rpub2github for RR, cleanup challenge and subsetting for G&CD

I haven't done many collaborative pull requests, but if I haven't horribly gone wrong I am hopefully offering some companion material for DDP, RR, and G&CD