update readme with deprecation notice

README.md

@@ -1,37 +1,10 @@
-# MultiversX SDK for PHP
+# Repository Deprecated
 
-[![Latest Version on Packagist](https://img.shields.io/packagist/v/PeerMe/mx-sdk-php.svg?style=for-the-badge)](https://packagist.org/packages/PeerMe/mx-sdk-php)
-[![GitHub Tests Action Status](https://img.shields.io/github/actions/workflow/status/PeerMeHQ/mx-sdk-php/tests.yml?style=for-the-badge&branch=main&label=Tests)](https://github.com/PeerMeHQ/mx-sdk-php/actions?query=workflow%3ATests+branch%3Amain)
-[![Total Downloads](https://img.shields.io/packagist/dt/PeerMe/mx-sdk-php.svg?style=for-the-badge)](https://packagist.org/packages/PeerMe/mx-sdk-php)
-[![](https://img.shields.io/twitter/follow/PeerMeHQ?color=%23555555&label=Follow%20PeerMe&logo=twitter&style=for-the-badge)](https://twitter.com/PeerMeHQ)
-[![](https://dcbadge.vercel.app/api/server/sDeejyk3VR)](https://discord.gg/sDeejyk3VR)
+**Notice:** This repository is no longer maintained and has been deprecated.
 
-## Installation
+For the latest version and ongoing development, please visit the new repository at [multiversx/mx-sdk-php](https://github.com/multiversx/mx-sdk-php).
 
-You can install the package via composer:
-
-```bash
-composer require peerme/mx-sdk-php
-```
-
-## Testing
-
-```bash
-composer test
-```
-
-## Contributing
-
-Please see [CONTRIBUTING](.github/CONTRIBUTING.md) for details.
-
-## Security Vulnerabilities
-
-Please review [our security policy](../../security/policy) on how to report security vulnerabilities.
-
-## Credits
-
-- [Micha Vie](https://github.com/michavie)
-- [All Contributors](../../contributors)
+We encourage all users and contributors to switch to the new repository for the most up-to-date features, enhancements, and bug fixes.
 
 ## License