chore: Port FreeSewing.dev to docusaurus

The replaces the NextJS site powering FreeSewing.dev with a Docusaurus
setup. It's part of my efforts to simplify FreeSewing's setup so we can
focus on our core value proposition.

sites/dev/docs/reference/api/pattern/samplemodels/readme.mdx

@@ -0,0 +1,67 @@
+---
+title: Pattern.sampleModels()
+---
+
+The `Pattern.sampleModels()` method will _sample_ the pattern which means
+to draft multiple variants of the same pattern, and stack them on
+top of each other.
+
+In this particular case, it will draft a variants for each of the models you pass it.
+
+:::tip
+The goal of model sampling is to verify that a pattern grades correctly up and down as sizes change.
+:::
+
+:::noteThis method is chainable as it returns the Pattern object:::
+
+## Pattern.sampleModels() signature
+
+```js
+Pattern pattern.sampleModels(object models, string focus)
+```
+
+The `models` object you pass as the first parameter should be structured as such:
+
+```js
+{
+ modelName1: {
+   measurement1: valueInMm,
+   measurement2: valueInMm,
+   // ...
+ },
+ modelName2: {
+   measurement1: valueInMm,
+   measurement2: valueInMm,
+   // ...
+ },
+ // ...
+}
+```
+
+The (optional) string you can pass as the second parameter should hold the
+key of one of the models in the first parameter. In our example above, it
+could hold `modelName2` for example.
+
+By passing this second parameter, you can put the _focus_ on one of the models,
+which will influence the render style, and make it
+easier to see a comparison between a given set of measurements, and the rest.
+
+Alternatively, you can use the `Pattern.sample()` method and set `settings.sample.focus` to the key
+identifying your model in the models object.
+
+## Pattern.sampleModels() example
+
+```js
+import { Aaron } from "@freesewing/aaron"
+
+const Aaron = new Aaron()
+
+// Load some public test measurements from the FreeSewing backend
+const measurements = (
+  await (
+    await fetch("https://backend3.freesewing.org/curated-sets/1.json")
+  ).json()
+).measurements
+
+const svg = aaron.sampleModels(measurements, "34").render()
+```