Added new images, wrote sources in humans.txt
Took out all of the images that aren't licensed.
Fixed alignment of checkout button.

Also changed grid parameters to change page layout.
Added images of books to the product pages.
Added content to main pages, adjusted grid layout.
Added new images. Put credits in humans.txt
Fixed image that wasn't aligning.
Changed order of book include title, adjusted grid.

Also added a second “current” function for the submenu.
Changed button class for cart page.
Improved alignment and styling of site elements.

Includes adjusting promos; changing header, background, and footer
colours; adjusting grids etc.