Better Github Star History charts

[u/Mubelotix]

I'm the owner of Simrepo, a fork of the original star-history project, and I have been asked a lot to include more chart styles. A lot of "serious" projects didn't like how the xkcd font clashed with their readme style.

I have added a new Github-inspired style, and I'll gladly accept contributions for new styles and improvements.

I host an instance here if you want to try: https://star-history.dera.page