Add remark-slug as a plugin

[janine9vn]

Reasoning

I'd like to add remark-slug as a plugin so that the headers on the website get auto-linked.

## My Heading

gets turned into:

<h2 id="my-heading">My Heading</h2>

This will allow us to add a potential Table of Contents and also provide jumplinks if need be. I feel that this necessary on pages with a lot of scrolling content like the awards page.

Another option if we don't want to use remark-slug and instead pseudo roll-our-own: override the headings and provide our own component

[twavv]

Yeah totally agree. Would be need if we could auto add those little clickable anchors as well to copy it.

Is this something you'd like to tackle, or just have a webdev person do it?