Made the sub-title a link to UMM's web site, and made the styling on that link a little more subtle.
Added some basic styling for info on course pages.
Got a first stab of my new courses plugin work. We can read course markdown files from the _courses directory and generate pages for them. The styling isn't great, and there are a number of things that don't work (the archives page doesn't have anything in it) and other things that are missing (the courses link in the navbar), but it's a step in a direction.