Sorry about that, I really should keep an updated list of supported languages with the call to action download at the bottom of the article. Thank you for bringing this to my attention.
I'm looking to support German the first half of this year. It's currently number 2 or 3 on my new language priority list. If you'd like to get an email when it's available, there is a form at the bottom of the homepage that let's you fill out what language pairs you're interested in.