Audio and buttons

Added “Text of Audio” button and got audio tag to appropriately place
while in mobile view. Still working on desktop view.
Merge branch 'master' of https://github.com/RashaunaMead/970_Mobile_Cartography

Conflicts:
Main/css/style.css
Merge branch 'master' of https://github.com/RashaunaMead/970_Mobile_Cartography