Merge pull request #35 from therewasaguy/master

Updating p5.sound.js for inline examples, adding sound assets
update ref
update sound
reworking hello p5 examples
Merge pull request #36 from shiffman/hellop5

reworking hello p5 examples
updating examples
tweaking examples
adding demo section
parsing html for descriptions closes #38
update and fix demos
Merge pull request #39 from shiffman/hellop5

cleanup comment all the hellop5 demos
merging new hello examples
cleanup noc examples
Update 07_song.js
Merge pull request #42 from shiffman/simulate

I cleaned up the simulate examples a bit
Merge pull request #43 from shiffman/patch-1

Need a tiny bit more vertical space in song demo for text
merging example tweaks
update css
adding examples
css