Add support for referencing terms in YAML Frontmatter using Jekyll

[lukenoaa]

Add support for referencing terms in YAML Frontmatter using Jekyll (or Hugo). Now that we have all the terms at the top in the YAML frontmatter, we can reference those terms when they appear in the Markdown body. Example (I put this file in the repo but it doesn't render correctly yet):

---
title: "My Document"
author: "John Doe"
date: "2024-11-16"
---

# {{ page.title }}

Written by {{ page.author }} on {{ page.date }}.

The downside is most Markdown renderers don't support Jekyll natively. So far it looks like the best way to get the documents to render the content for viewing and printing is GitHub Pages. We could make a GitHub Pages site for our AOML protocols repository.