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/_curve/en.md

@@ -0,0 +1,41 @@
+---
+title: "_curve()"
+---
+
+```js
+Path path._curve(Point cp2, Point to)
+```
+
+Draws a cubic Bezier curve from the current position via two control points to a given endpoint.
+However, the start control point is identical to the start point.
+
+<Tip>
+
+###### This method exists to save you some typing
+
+Note that the two following calls yield the same result:
+
+```js
+.curve(point1, point1, point2)
+._curve(point1, point2)
+```
+
+So the only purpose of this method is to save your some typing.
+
+</Tip>
+
+<Example part="path__curve" caption="Example of the Path._curve() method" />
+
+```js
+  let { Point, points, Path, paths } = part.shorthand();
+
+  points.from = new Point(5, 20);
+  points.cp2 = new Point(60, 30);
+  points.to = new Point(90, 20);
+
+  paths.line = new Path()
+    .move(points.from)
+    ._curve(points.cp2, points.to)
+    .attr("data-text", "Path._curve()")
+    .attr("data-text-class", "text-sm center fill-note");
+```