Ask HN: Best way to render latex equations in GitHub readme?

I want to render math equations in a github readme. Github flavored markdown does not support mathjax. My current solution is to write each equation individually, render it to a .png file, and include the .png file as an image in the repository.

This is cumbersome and inconvenient, so I'm wondering if any tools exist to streamline this process. I don't mind including the .png files in the readme, but it would be nice if I could write the latex equations in some kind of intermediate document, then run a script to build it into a readme file and rendered images.

Anyone know of something?