Add tooltips for vocabulary words about edu

[mcaveety]

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

[smythp]

I think that maybe we should more aggressively create shortcode blurbs summarizing specific topics. I've been doing this recently with, for example, deep learning and CVSS. The issue I have with hover-and-show are the following:

1. Discoverability: Visitors probably won't know we do this.
2. Least surprise. You don't necessarily expect things to pop up when you hover and you might be trying to do something else, like copy. (I copy a lot and kind of hate popups that want me to share on Twitter or whatever.)
3. Accessibility. Hover and show would only be accessible to mouse users, and for keyboard/screen reader users it would be too verbose.

That said, I do think we use terms like CVE and various othersecurity-related items without referring visitors to definitions, and that some articles that are more introductory should do this more. If we wanted to pursue this, maybe we could add more definitions from the glossary to our blurbs folder and then use them more prolifically as a house style.

Wondering what @sheesh and @SharpRake think.

[SharpRake]

I agree with @smythp's points. While tooltips can be cooltips they aren't always intuitive and in something like docs I think an easier solution is to modularize heavily reused content like definitions with blurbs.

[mcaveety]

This makes sense, thanks guys! Me & Lisa had discussed this about a year ago but I don't recall it ever being discussed with the whole team. I agree, adding more blurbs and expanding the glossary may be a better way to address this going forward. The implications for accessibility are also super important, so thanks for raising that.