At the http://taucharts.com http://taucharts.com it says "Free open source D3.js-based library" but in the tutorial at http://api.taucharts.com/tutorials/5min.h

At the http://taucharts.com http://taucharts.com it says "Free open source D3.js-based library" but in the tutorial at http://api.taucharts.com/tutorials/5min.html http://api.taucharts.com/tutorials/5min.html it says "free for non-commercial use". At GitHub it is sporting Apache License, Version 2.0 which - if I am not mistaken - allows commercial use. Could you please clear that up for me? Am I allowed to use it in commercial products (like a website made for one of my clients) or not? Thanks.