Create scenario.md
app name and description update
speaker info updated
sensor info updated
sensor info updated
scenario updated
layout edited
acceleration added
s added
delete both
Update object.md
Rename boilerplate.md to piezoelectric.md
title changed
image upload
image link
Update stereo-speakers.md
collage image added
collage uploaded
Merge pull request #4 from yz2428/master

Musical Stairs app/program by @yz2428