[react] feat: Added docs for components/KeyVal

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

@@ -1,7 +1,21 @@
 ---
 title: KeyVal
 ---
+import { DocusaurusDoc } from '@freesewing/react/components/Docusaurus'
+import { ComponentDocs } from '@site/src/components/component-docs.js'
+import * as jsdoc from '@site/prebuild/jsdoc/components.keyval.mjs'
+import { KeyValExample } from './_examples.js'
+
+
+<DocusaurusDoc>
+
+The __KeyVal component family provides the following components:
+
+- [KeyVal](#keyval)
+
+## KeyVal
+<ComponentDocs docs={jsdoc.jsdocKeyVal} example={KeyValExample} />
+
+</DocusaurusDoc>
+
 
-:::note
-This page is yet to be created
-:::