Set these parameters along with the other ones in the frontmatter for LaTeX formatting to work.
---
katex: true
markup: mmark
description: "When using Katex, this field is required for the listing page to work correctly."
---
Once that's done, you can render LaTeX using the following syntax.
This will render the formula in the same line:
Integrate $$\int x^3 dx$$
This will render the formula in its own line
$$\int_{a}^{b} x^2 dx$$
If something doesn't render or renders funny, switching the markup parser to mmark
should do the trick.
This can be done by adding markup: mmark
to the frontmatter.