docs: Storybook 9

Author: fi3ework

README.md

@@ -6,10 +6,15 @@
  <a href="https://www.npmjs.com/package/storybook-builder-rsbuild"><img src="https://img.shields.io/npm/v/storybook-builder-rsbuild?style=flat-square&color=ff4785" alt="latest version" /></a>
  <a href="https://npmcharts.com/compare/storybook-builder-rsbuild,storybook-react-rsbuild,storybook-react-vue,storybook-vue3-rsbuild,storybook-vue3-rsbuild?interval=7&log=false"><img src="https://img.shields.io/npm/dm/storybook-builder-rsbuild?style=flat-square&color=%23ff4785" alt="NPM downloads per month" /></a>
  <a href="https://github.com/rspack-contrib/storybook-rsbuild/blob/main/LICENSE"><img src="https://img.shields.io/npm/l/storybook-builder-rsbuild?style=flat-square&color=%23ff4785" alt="license" /></a>
+ <a href="https://github.com/rspack-contrib/storybook-rsbuild"><img src="https://img.shields.io/badge/main%20%28Storybook%208%29-ff4785" alt="main branch" /></a>
+ <a href="https://github.com/rspack-contrib/storybook-rsbuild/tree/v2"><img src="https://img.shields.io/badge/v2%20%28Storybook%209%29-ff4785" alt="main branch" /></a>
 </p>
 
 The repository contains the Storybook Rsbuild builder and UI framework integrations.
 
+> [!NOTE]
+> For users of Storybook v9, Storybook Rsbuild already provides basic alpha version support. Check out the [v2](https://github.com/rspack-contrib/storybook-rsbuild/tree/v2) branch (using version `2.0-alpha.x`), and refer to the [Storybook v9 migration documentation](https://github.com/storybookjs/storybook/blob/next/MIGRATION.md#from-version-8x-to-900).
+
 ## Usage
 
 Check out the [documentation](https://storybook-rsbuild.netlify.app).

website/docs/guide/index.mdx

@@ -23,7 +23,13 @@
   </a>
 </p>
 
-The repository contains the Storybook Rsbuild builder and UI framework integrations.
+The repository contains the Storybook (v8) Rsbuild builder and UI framework integrations.
+
+:::info{title=Storybook v9}
+
+For users of Storybook v9, Storybook Rsbuild already provides basic alpha version support. Check out the [v2](https://github.com/rspack-contrib/storybook-rsbuild/tree/v2) branch (using version `2.0-alpha.x`), and refer to the [Storybook v9 migration documentation](https://github.com/storybookjs/storybook/blob/next/MIGRATION.md#from-version-8x-to-900).
+
+:::
 
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