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/howtos/code/drawing-circles/en.md

@@ -0,0 +1,16 @@
+---
+title: Drawing circles
+for: developers
+about: Shows how you can add circles to your pattern
+---
+
+Real circles are rarely used in pattern design, and they are not part of the SVG path specification, 
+but rather a different SVG element.
+
+Still, if you want a circle, you can draw one by setting a Point's `data-circle` attribute 
+to the radius of the circle you want to draw.
+
+In addition, all attributes that have a `data-circle-` prefix will apply to the circle, rather than the point.
+
+<Example pattern="rendertest" caption="Circles" options={{ colors: false, text: false, macros: false, snippets: false, widthHd: false }} />
+