explore new site layout and style

[orbeckst]

The Hyde layout has worked pretty well and I still like its simplicity. However, the menu on the right is overflowing and gets unwieldy. I suggest we try out another layout such as Just the docs which can do collapsible sidebar menus and gives a bit more freedom in how we organize things. The overall structure can stay the same and links could remain as they are.

I am not sure if it also has the blog functionality which we would like to retain.