Add archival note to README

Add color

now using requestAnimationFrame

frame interval was set wrong after game was paused

a couple missing ends with the ipad version

I can't spell 'screen' apparently :)

Revert controls

Fix typo in space

Use space for movement and enter for shooting

mostly finished ipad version

trying to get div touch controls to work

first pass at ipad controls

now capturing down key so people don't accidently scroll the page

added license

increased canvas size