Merge branch 'gh-pages' of https://github.com/udacity/frontend-nanodegree-styleguide into gh-pages

* 'gh-pages' of https://github.com/udacity/frontend-nanodegree-styleguide:
  ID update
  IDs are evil evily horrible evil!
  Bunch of corrections, a few changes
Changed #example to .example in type selectors section