JupyterBook these days supports a number of readability and navigation features that I'm not yet using. It would be great to use the [glossary](https://jupyterbook.org/en/stable/content/content-blocks.html#glossaries) feature for term definitions, and the [index](https://jupyterbook.org/en/stable/content/content-blocks.html#indexes) feature to make things easier to find.
