docs: add readme

Author: hunterliu1003

packages/vue-final-modal/README.md

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+# Vue Final Modal 4
+
+The most powerful yet most light-weight modal library for Vue 3.
+
+<p align="center"><a href="https://vue-final-modal.org" target="_blank" rel="noopener noreferrer"><img src="https://vue-final-modal.org/preview.png" alt="Vue Final Modal Logo"></a></p>
+
+<p align="center">
+  <a href="https://npmcharts.com/compare/vue-final-modal?minimal=true"><img src="https://badgen.net/npm/dm/vue-final-modal" alt="Downloads"></a>
+  <a href="https://www.npmjs.com/package/vue-final-modal"><img src="https://img.shields.io/npm/l/vue-final-modal.svg?sanitize=true" alt="License"></a>
+  <a href="https://app.netlify.com/sites/vue-final-modal/deploys"><img src="https://api.netlify.com/api/v1/badges/444b13a8-540f-4438-94da-80c865c8f103/deploy-status" alt="Netlify Status"></a>
+</p>
+<p align="center">
+  <a href="https://www.npmjs.com/package/vue-final-modal"><img src="https://badgen.net/npm/v/vue-final-modal/beta" alt="Version"></a>
+</p>
+
+<p align="right">
+  <a href="https://www.buymeacoffee.com/PL2qJIx" target="_blank" rel="noopener noreferrer">
+    <img width="200" src="https://cdn.buymeacoffee.com/buttons/v2/default-green.png" alt="Buy Me A Coffee" />
+  </a>
+</p>
+
+## [Documentation](https://v4.vue-final-modal.org/)
+
+Checkout [Migration guide from v3](https://v4.vue-final-modal.org/get-started/migration/from-v3).
+
+Looking for old version?
+
+- [vue-final-modal@3.x for Vue 3](https://v3.vue-final-modal.org/)
+- [vue-final-modal@2.x for Vue 2](https://v2.vue-final-modal.org/)
+
+## Contribution Guide
+
+```bash [pnpm]
+# Install packages
+pnpm install --shamefully-hoist
+
+# Build vue-final-modal library first
+pnpm build:vfm
+
+# Run both docs and viteplay
+pnpm dev
+
+# Run docs: http://localhost:3000/
+pnpm dev:docs
+
+# Run viteplay: http://localhost:5173/
+pnpm dev:viteplay
+```
+
+## Contributors
+
+Thank you to all the people who already contributed to `vue-final-modal`!
+
+<a href="https://github.com/vue-final/vue-final-modal/graphs/contributors" aria-label="contributors">
+  <img src="https://contrib.rocks/image?repo=vue-final/vue-final-modal" alt="contributors" />
+</a>
+
+Made with [contributors-img](https://contrib.rocks).
+
+🚀 If you have any ideas for optimization of `vue-final-modal`, feel free to open [issues](https://github.com/hunterliu1003/vue-final-modal/issues) or [pull requests](https://github.com/hunterliu1003/vue-final-modal/pulls).