Canonical disagrees with redirect

Your redirects redirect a plain page to one with a trailing slash, but the canonical inconsistently indicated with page without the slash is the primary. 

See http://paul.kinlan.me/this-is-the-web-platform/ vs http://paul.kinlan.me/this-is-the-web-platform

cc @adewale
Merge pull request #2 from ianbarber/patch-1

Canonical disagrees with redirect