Update README.md [skip ci]

yannbf · web-flow · commit e20717ba8cf4 · 2024-05-16T12:36:15.000+02:00
diff --git a/README.md b/README.md
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+> ⚠️ IMPORTANT NOTE:
+> This package is deprecated, alongside Vue2 support for Storybook. If you have no plans on upgrading to Vue 3, you can stick to Storybook 7.
+> The composeStories API has been promoted to a first-class Storybook functionality in Storybook 8, and you can now use it as part of @storybook/vue3.
+> More info: https://github.com/storybookjs/testing-vue3/issues/16
+
+-----------------------------
+
 <p align="center">
   <img src="https://user-images.githubusercontent.com/1671563/119191947-9ba7a400-ba7f-11eb-8658-2b7056f1cd12.png" alt="Storybook Testing Vue" width="100" />
 </p>
