begin building the example doc page
add grid, make header styles sans serif and bold
fixed bug that used padding instead of margin to offset columns
add info to example doc page
added hero units for h1-h6 and p
complete hero unit styles
add hero unit for buttons
added miscellaneous type considerations for upper and lowercase
Merge branch 'master' of https://github.com/dstrunk/brekkie

* 'master' of https://github.com/dstrunk/brekkie:
  Update README.md