Well since markdown has been designed to be relatively comfortable to read in its source form, I initially thought this link would be an opinion piece on serving raw markdown pages using the browser ability to show text files as is.
I meant add a `<script src=...>` to the `<head>` section of the page.
Not perfect, to be sure, but it lets you create a custom element `<mark-down src=...>` that lets the page author sprinkle markdown everywhere in their page.