updated comments for clarity.
Revert "updated comments for clarity."

This reverts commit 9e59f736e97074ce3442d23dde3237435b233a3a.
Revert "updated the faces-scroll image to scroll infinitely, via greensock."

This reverts commit 1dddf0b733f982b0056feb633fae2d6113fc8c9d.
infinite scroll on faces-scroll.jpg and comments for clarity