fix: update readme

README.md

@@ -1,9 +1,120 @@
 # @intilfy/utils
 
+[![npm version][npm-version-src]][npm-version-href] [![CI][ci-src]][ci-href]
+
+<!--
+[![npm
+downloads][npm-downloads-src]][npm-downloads-href]
+-->
+
+> ⚠️ NOTICE: documentation is under construction 👷
+
 Collection of i18n utilities
 
-> NOTICE: ⚠️ The documentation is under construction.
+## 🌟 Features
+
+✅️ &nbsp;**Modern:** ES Modules first and respect ECMAScript
+Internationalization API
+
+✅️ &nbsp;**Compatible:** support CommonJS and various JS environments
+
+✅️️ &nbsp;**Minimal:** Small and fully tree-shakable
+
+✅️️ &nbsp;**Type Strong:** Written in TypeScript, with full JSdoc
+
+## 💿 Installation
+
+### Node.js
+
+```sh
+# Using npm
+npm install @intlify/utils
+
+# Using yarn
+yarn add @intlify/utils
+
+# Using pnpm
+pnpm add @intlify/utils
+```
+
+<details>
+  <summary>Using Edge Releases</summary>
+
+If you are directly using `@intlify/utils` as a dependency:
+
+```json
+{
+  "dependencies": {
+    "@intlify/utils": "npm:@intlify/utils-edge@latest"
+  }
+}
+```
+
+**Note:** Make sure to recreate lockfile and `node_modules` after reinstall to
+avoid hoisting issues.
+
+</details>
+
+### Deno
+
+TODO:
 
-## License
+### Bun
+
+TODO:
+
+### Browser
+
+TODO:
+
+## 🚀 Usage
+
+TODO:
+
+## 🔨 Utilities
+
+### Common
+
+- `isLocale`
+- `parseAcceptLanguage`
+- `validateLanguageTag`
+
+You can do `import { ... } from '@intlify/utils'` the above utilities
+
+### HTTP
+
+- `getAcceptLanguages`
+- `getLocale`
+- `getCookieLocale`
+- `setCookieLocale`
+
+You can do `import { ... } from '@intlify/utils/{ENV}'` the above utilities.
+
+`ENV` is one of the following:
+
+- `node`: Node.js
+- `web`: JS environments (Deno and Bun) supporting Web APIs such as
+  [Request](https://developer.mozilla.org/en-US/docs/Web/API/Request) and
+  [Respose](https://developer.mozilla.org/en-US/docs/Web/API/Response)
+- `h3`: HTTP framework [h3](https://github.com/unjs/h3)
+
+## 🙌 Contributing guidelines
+
+If you are interested in contributing to `@intlify/utils`, I highly recommend
+checking out [the contributing guidelines](/CONTRIBUTING.md) here. You'll find
+all the relevant information such as
+[how to make a PR](/CONTRIBUTING.md#pull-request-guidelines),
+[how to setup development](/CONTRIBUTING.md#development-setup)) etc., there.
+
+## ©️ License
 
 [MIT](http://opensource.org/licenses/MIT)
+
+<!-- Badges -->
+
+[npm-version-src]: https://img.shields.io/npm/v/@intlify/utils?style=flat&colorA=18181B&colorB=FFAD33
+[npm-version-href]: https://npmjs.com/package/@intlify/utils
+[npm-downloads-src]: https://img.shields.io/npm/dm/@intlify/utils?style=flat&colorA=18181B&colorB=FFAD33
+[npm-downloads-href]: https://npmjs.com/package/@intlify/utils
+[ci-src]: https://github.com/intlify/utils/actions/workflows/ci.yml/badge.svg
+[ci-href]: https://github.com/intlify/utils/actions/workflows/ci.yml