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From the Bug Bash conversation with @lwasser:
* [jupyterbook has one!](https://jupyterbook.org/en/stable/reference/glossary.html)
* https://raw.githubusercontent.com/executablebooks/jupyter-book/master/docs/reference/glossary.md
and it looks like there is a sphinx [glossary directive](https://www.sphinx-doc.org/en/master/usage/restructuredtext/directives.html#glossary) we can employ as well.
we could literally work on it at any time and perhaps the first step is just a list of terms in a hackmd or something that we can work on fleshing out with the community?