Update README.md

Author: carry0987

README.md

@@ -1,3 +1,48 @@
 # PHP-Sharp
 [![Packgist](https://img.shields.io/packagist/v/carry0987/sharp.svg?style=flat-square)](https://packagist.org/packages/carry0987/sharp)  
 A PHP script for generating signed and encrypted URLs for image processing with **[Sharp-API](https://github.com/carry0987/Sharp-API/)**, using AES-256-CBC and HMAC-SHA256.
+
+## Installation
+Use Composer to install PHP-Sharp Image Encryptor in your project:
+
+```shell
+composer require carry0987/sharp
+```
+
+## Configuration
+To use PHP-Sharp, you need to have a signature key, a signature salt, and a source key for encryption and hashing. These should be provided as hexadecimal strings.
+
+## Usage
+Below is an example demonstrating how to encrypt an image URL using PHP-Sharp Image Encryptor:
+
+```php
+require_once 'vendor/autoload.php';
+
+use carry0987\Sharp\Sharp;
+
+// Initialize the keys and salt. Replace these values with your actual keys and salt.
+$signatureKey = 'your_hex_signature_key';
+$signatureSalt = 'your_hex_signature_salt';
+$sourceKey = 'your_hex_source_key';
+
+// Create a new instance of PHP-Sharp Image Encryptor.
+$imageEncryptor = new Sharp($signatureKey, $signatureSalt, $sourceKey);
+
+// The URL of the image you want to encrypt.
+$originalImageUrl = 'https://example.com/image.jpg';
+
+try {
+    // Generate the encrypted and signed URL.
+    $signedUrl = $imageEncryptor->generateEncryptedUrl($originalImageUrl);
+    echo 'Encrypted and signed URL: ' . $signedUrl;
+} catch (\carry0987\Sharp\Exceptions\SharpException $e) {
+    // Handle any exceptions during the encryption process.
+    echo "Error occurred: " . $e->getMessage();
+}
+```
+
+## Contributing
+Contributions to PHP-Sharp Image Encryptor are welcome! Feel free to submit pull requests to improve the codebase.
+
+## License
+This project is licensed under the MIT License. See the [LICENSE](LICENSE) file for details.