Add rehype-katex

[ofrades]

Would be good to have rehype-katex or some way of easily adding rehype plugins.

[mosch]

Thanks for bringing this up!

[dan-lee]

You can actually already add rehype/remark plugins to the Zudoku config:

  build: {
    rehypePlugins: [rehypeParse]
    // remarkPlugins: []
  }