Seems like merging `xkcd-script.ttf`[0] directly into `chart.xkcd` repository may violate `xkcd-font` licensing.[1] CC-SA-NC-licensed thing could not be merged

Seems like merging `xkcd-script.ttf`[0] directly into `chart.xkcd` repository may violate `xkcd-font` licensing.[1] CC-SA-NC-licensed thing could not be merged into MIT-licensed thing. [0] https://github.com/ipython/xkcd-font/blob/master/xkcd-script/font/xkcd-script.ttf https://github.com/ipython/xkcd-font/blob/master/xkcd-script... [1] https://github.com/ipython/xkcd-font/blob/master/LICENSE https://github.com/ipython/xkcd-font/blob/master/LICENSE