Minimal example the components to make equations like 3.1 in a Quarto book
- mathjax.html -- the mathjax config with tagformate needed for chapter numbers
- chapnum.lua -- a lua filter to add
<script>MathJax.config.section=chap-num</script>to the html.
It is kind of working but adds <script>MathJax.config.section=chap-num</script> every where including the sidebar and I need it to only be in the <header> tag.
the title is in a pandoc.metablock, I think. need to use lua filter to access that.