Merge pull request #111 from tgrrtt/develop

implemented undo button
adds links to names and images in About Us, portects inner div
adds expanding feature to 'how it works' sidebar
adds 'how it works' informative text
adds and styles info text, needs a little TLC
Merge pull request #112 from TessMyers/develop

adds and styles info text, needs a little TLC
Undo changes color if no stash
cursor: pointer on selectable svg path hover
edit font color of greyed-out undo button