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/getconfig/readme.mdx

@@ -0,0 +1,27 @@
+---
+title: Pattern.getConfig()
+---
+
+You can call `Pattern.getConfig()` to retrieve a pattern's runtime configuration.
+
+Doing so will resolve all dependencies, load all the plugins, and do all other
+housekeeping tasks that are typically done behind the scenes when you call
+`Pattern.draft()`. But it will stop short of drafting the pattern, and instead
+return a Pattern's internal configuration.
+
+You can use this to see what options a pattern provides, what
+measurements it requires, and so on.
+
+## Pattern.getConfig() signature
+
+```js
+object pattern.getConfig()
+```
+
+## Pattern.getConfig() example
+
+```js
+import { Aaron } from "@freesewing/aaron"
+
+const config = new Aaron().getConfig()
+```