Update README.md

Author: Tarpsvo

README.md

@@ -8,8 +8,8 @@ This [Laravel Nova](https://nova.laravel.com) package adds a container for group
 
 ## Requirements
 
-- `php: >=7.2`
-- `laravel/nova: ^3.0`
+- `php: >=8.0`
+- `laravel/nova: ^4.0`
 
 ## Screenshots