Add tooltips for vocabulary words

[mcaveety]

Is your feature request related to a problem? Please describe.
The glossary is helpful, but you have to hunt it down in the hopes of finding a term.

Describe the solution you'd like
Having vocabulary words in the glossary get ingested and used to create tooltips on hover-over of words would be a great way to utilize and link back to the glossary more often! Also makes the website a bit more interactive / tactile

Describe alternatives you've considered
Right now, we do occasionally link words directly to the glossary but the lack of hover-over tooltip does make it a bit cumbersome to navigate back and forth between pages. We also embed definitions within our articles, which is good when introducing concepts in their focused articles, but not the best in cases where we want to focus on a different topic and assume certain things as knowledge.

Additional context
I could draw something to represent this :)

[mcaveety]

@ltagliaferri how does this look? I put it as status - backlog for now.