Auto merge of #76 - martndemus:update-readme-with-toc, r=martndemus
Auto merge of #76 - martndemus:update-readme-with-toc, r=martndemus

Update the README with a TOC

Also re-orders the contents a little bit.

martndemus/ember-cli-font-awesome,martndemus/ember-cli-font-awesome,lfridael/ember-cli-font-awesome,lfridael/ember-cli-font-awesome,martndemus/ember-font-awesome,martndemus/ember-font-awesome