It adds math syntax support to markdown editor and preview. It uses KaTeX to render math typesetting.
You can write equations in LaTeX syntax like this:
```math
\int_0^\infty \frac{x^3}{e^x-1}\,dx = \frac{\pi^4}{15}
```
or
$$
\int_0^\infty \frac{x^3}{e^x-1}\,dx = \frac{\pi^4}{15}
$$
It will be rendered as:
Inline example:
Inline math: $\int_0^\infty \frac{x^3}{e^x-1}\,dx = \frac{\pi^4}{15}$
It will produce:
