Use the Link module from latest Cowabloga to add a links page
Link in the new section with a dropdown
fix typo in next article link
Add a warning that you probably need to pin cowabloga to get the
website to build while the refactoring is ongoing.

Closes mirage/mirage-www#71
Merge pull request #72 from avsm/master

Add links, and a warning to need pin Cowabloga for now