Update README.md (PHP 8.4 compatibility)

Author: igor-krein

README.md

@@ -16,7 +16,7 @@ Install the latest version using composer.
 $ composer require paquettg/php-html-parser
 ```
 
-This package can be found on [packagist](https://packagist.org/packages/paquettg/php-html-parser) and is best loaded using [composer](http://getcomposer.org/). We support php 7.2, 7.3, and 7.4.
+This package can be found on [packagist](https://packagist.org/packages/paquettg/php-html-parser) and is best loaded using [composer](http://getcomposer.org/). We support PHP 7.2, 7.3, and 7.4. Also, it is supposed to be PHP 8.4 compatible.
 
 Basic Usage
 -----