feat: Flat import of markdown repo

This is a flat (without history) import of (some of) the content
from our markdown module.

We've imported this without history because the repo contains our
blog posts and showcases posts content prior to porting them to strapi.

Since this contains many images, it would balloon the size of this repo
to import the full history.

Instead, please refer to the history of the (archived) markdown repo
at: https://github.com/freesewing/markdown

markdown/dev/reference/settings/embed/en.md

@@ -0,0 +1,23 @@
+--- 
+title: embed
+---
+
+Set to `true` to make SVG output suitable for embedding in a web page.
+
+This removes the `width` and `height` attributes from the SVG tag, which allows
+you to inject the SVG into an HTML document, and it will responsively scale.
+
+```js
+import brian from "@freesewing/brian";
+
+let pattern = new brian({
+  embed: true
+})
+```
+
+<Warning>
+
+Do **not** use this for SVGs you want to print.
+
+</Warning>
+