This is a fork of concrete.css to make certain changes stylistically and to add more components to it

Listed below are the changes made in difference to concrete.css

• The spacing between the <header> and following <section> tags has been reduced to 4rem.
• The font used for headings --font-h is now "Departure Mono".
• Minimal classes for adding sidenote menu in the form of the sidemenu and sidemenu-left classes for divs.
• <aside> tags now act as sidenotes (no numbering for them).
• The light accent colour has been changed to whitesmoke as I don't like having extreme white as an accent or background.
• Figure captions are now italicised.