the form landmark is not recognized by all screen readers/browser combos.

[tonyfast]

at the moment, the most minimal representation uses forms as the landmark for cells. it turns out that the form landmark is not respected across all browsers. if we want to include cells as landmarks then forms will be inconsistent. i think that cells as regions is good intermediate choice.

[tonyfast]

closed by #69 which removes the title from the form and wraps contents of the article in a section region with the cell label.