Add glossary of terms (?)

[isabelizimm]

It was proposed that we include a glossary in documentation to clearly define how we are using certain loaded terms. We probably need a sufficiently large list to make this useful, but wanting to track this idea for now.

Some definitions that may be useful ⬇️

• MLOps
• production
• batch predictions

[juliasilge]

There's a new R package we could use for adding a glossary (with nice links and hover text): https://debruine.github.io/glossary/