This is a script to embed raw text into a page as highlighted code. It uses ajax requests to fetch the raw content from the URL inside of an anchor element, and then [highlight.js] to render the code.
The benefit of this over Github's gist embedding is that it can be used in a full page. If you want to mirror a Gist to [StackOverflow] for example, this script can be wrapped inside of a code snippet. Every time the gist that the code snippet points to is updated, the code rendered on StackOverflow will also update.