This is actually a change I introduced (https://github.com/Freeseer/freeseer/commit/f9a38737f3a2415c0eab3ba9682c1fe4b1b181a4). The biggest change is that it's using reference links instead of inline links, so all the links are now at the bottom.

    [description](a-very-long-url)

becomes

    [description] [url-reference]

    [url-reference]: a-very-long-url

It's a bit confusing if you're not used to the syntax, but once you get used to it I think it's better. Links can now be described and reused while taking up less space in the text compared to inline links. Making the documentation slightly more readable.