fix(docs): correct PHP Packagist URL to cloudlayerio/cloudlayerio-php

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: elucidsoft

README.md

@@ -231,7 +231,7 @@ client, err := cloudlayer.NewClient("key", cloudlayer.V2,
 
 - **JavaScript/TypeScript:** [@cloudlayerio/sdk](https://www.npmjs.com/package/@cloudlayerio/sdk) ([GitHub](https://github.com/cloudlayerio/cloudlayerio-js))
 - **Python:** [cloudlayerio](https://pypi.org/project/cloudlayerio/) ([GitHub](https://github.com/cloudlayerio/cloudlayerio-python))
-- **PHP:** [cloudlayerio/sdk](https://packagist.org/packages/cloudlayerio/sdk) ([GitHub](https://github.com/cloudlayerio/cloudlayerio-php))
+- **PHP:** [cloudlayerio/cloudlayerio-php](https://packagist.org/packages/cloudlayerio/cloudlayerio-php) ([GitHub](https://github.com/cloudlayerio/cloudlayerio-php))
 - **.NET C#:** [cloudlayerio-dotnet](https://www.nuget.org/packages/cloudlayerio-dotnet/) ([GitHub](https://github.com/cloudlayerio/cloudlayerio-dotnet))
 
 ## License