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/api/path/divide/en.md

@@ -0,0 +1,40 @@
+---
+title: divide()
+---
+
+```js
+array path.divide()
+```
+
+Breaks a path apart in an array of atomic paths. An atomic path is a path that can't be divided further and is
+always made up of one move + one drawing operation.
+
+<Example part="path_divide" caption="Example of the Path.divide() method" />
+
+```js
+let { Point, points, Path, paths } = part.shorthand();
+
+points.A = new Point(55, 40);
+points.B = new Point(10, 70);
+points.BCp2 = new Point(40, 20);
+points.C = new Point(90, 60);
+points.CCp1 = new Point(50, -30);
+points.D = new Point(50, 80);
+points.DCp1 = new Point(140, 50);
+
+paths.example = new Path()
+  .move(points.A)
+  .line(points.B)
+  .curve(points.BCp2, points.CCp1, points.C)
+  .curve(points.DCp1, points.DCp1, points.D)
+  .close();
+
+let style = "stroke-width: 4; stroke-opacity: 0.5;";
+let i = 0;
+for (let p of paths.example.divide()) {
+  i++;
+  paths[i] = p
+    .attr("style", style)
+    .attr("style", `stroke: hsl(${i * 70}, 100%, 50%)`);
+}
+```