Fixing some hrefs and ids in sample doc.
Fixing some hrefs and ids in sample doc.

macmillanpublishers/HTMLBook,wastemobile/HTMLBook,mushroomgithub/HTMLBook,oreillymedia/HTMLBook,gitenberg-dev/HTMLBook,gitenberg-dev/HTMLBook,macmillanpublishers/HTMLBook,gitenberg-dev/HTMLBook,oreillymedia/HTMLBook,mushroomgithub/HTMLBook,oreillymedia/HTMLBook,macmillanpublishers/HTMLBook,mushroomgithub/HTMLBook,wastemobile/HTMLBook