Updated README

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Alexis POUPELIN
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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-# Sendcloud
+# Sendcloud v3 ☁️
 
-This library only supports Sendcloud API v3.
-For v3, checkout https://github.com/Webador/sendcloud
+![Packagist Version](https://img.shields.io/packagist/v/alexispplin/sendcloud-v3?link=https%3A%2F%2Fpackagist.org%2Fpackages%2Falexispplin%2Fsendcloud-v3)
+![License](https://img.shields.io/github/license/AlexisPPLIN/sendcloud-v3)
 
-## Installation
+## 📦 About
 
-TODO
+Implementation of [Sendcloud v3 API](https://sendcloud.dev/api/v3) for PHP
 
-## Supported Endpoints
+> [!NOTE]
+> For v2 users, use [Webador/sendcloud](https://github.com/Webador/sendcloud)  
+> (which this library is heavily inspired by)
 
-- Orders
+## ⚙️ Requirements
+
+- PHP 8.2+
+- PSR7 & PSR17 implementation
+
+## 🛠️ Installation
+
+```bash
+composer require alexispplin/sendcloud-v3
+```
+
+> [!NOTE]
+> This library uses [HTTPlug](https://docs.php-http.org/en/latest/httplug/users.html)
+
+For this lib to work, you will need to install a PSR7 & PSR17 implementation.  
+Check the full documentation here : https://docs.php-http.org/en/latest/httplug/users.html
+
+For example :
+```bash
+composer require symfony/http-client nyholm/psr7
+```
+
+## 🌐 Supported Endpoints
+
+- [Orders](https://sendcloud.dev/api/v3/orders)
+
+## 💡 Quick start
+
+```php
+<?php
+use AlexisPPLIN\SendcloudV3\Endpoints\Orders;
+
+// Create client
+
+$orders = new Orders(
+    publicKey: /* YOUR PUBLIC KEY */,
+    secretKey: /* YOUR SECRET KEY */,
+    partnerId: /* (optional) YOUR PARTNER ID */
+);
+
+// Retrieve an order
+
+$order = $orders->getOrder(id: 1);
+```
+
+## 🤝 Contributing
+
+Contributions are welcome! Please follow these steps:
+1. Fork the repository
+2. Create a branch for your feature
+3. Commit your changes
+5. Create a Pull Request to the main branch
+
+## 📄 License
+
+This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.