Add vignette or tab section for videos or external use cases

An idea that could be of interest after having case studies or video recordings of presentations.

Inspired by the "Videos" tab section in the headline of [gganimate package](https://gganimate.com/articles/extra/talks.html) and indexed "scientific use cases" by rOpenSci for the [osmdata package](https://ropensci.org/packages/geospatial/)

The issue names no file, test, or entry point. First review the package's existing documentation and the referenced gganimate and rOpenSci examples; done means choosing and adding a videos or external-use-cases section once case studies or recordings are available.

Written by the indexing model from the issue text.