feat(dev): Added react docs for Pattern + refactor

This adds support for not only documenating components, but also
constants and functions that may be exported next to components.

sites/dev/docs/reference/packages/react/components/collection/readme.mdx

@@ -9,16 +9,21 @@ import { CollectionExample, DesignInfoExample } from './_examples.js'
 
 <DocusaurusDoc>
 
+- [Components](#components)
+
+## Components
+
 The **Collection** component family provides the following components:
 
 - [Collection](#collection)
 - [DesignInfo](#designinfo)
 
-## Collection
+### Collection
+
 <ComponentDocs docs={jsdocCollection} example={CollectionExample} />
 
-## DesignInfo
+### DesignInfo
+
 <ComponentDocs docs={jsdocDesignInfo} example={DesignInfoExample} />
 
 </DocusaurusDoc>
-