While it's great to have a link to the charts themselves, you'll definitely want to also inline some screenshots of the charts in action. Pages of code samples are handy as examples but you'll need that first impression to draw attention.
Awesome library. @ahmeni is right include screenshots in Github as well & show the website link rather than writing the description with link in Markdown. Also, add link beside Github pages repo description too. Great job.
Nice library though!