Make page titles sticky

[ljwalker]

URL: https://paleo-data.github.io/how-to-guides/manage-data-about-specimens-using-symbiota.html

Source file: https://github.com/paleo-data/knowledge-hub/blob/main/collections/_how-to-guides/manage-data-about-specimens-using-symbiota.md

==== Please do not change anything above this line ====

Suggest a change to this page:

Suggested change is not specific to just this page, though this page is an example of how it would be implemented across the Knowledge Hub.

Specifically, in the page cited above, the page title--"Manage data about fossil specimens using Symbiota"--would stay visible as a user scrolls down the page as a contexual visual cue for readers (like this).