fix php version

composer.json has ^8.1

README.md

@@ -37,7 +37,7 @@ echo $egypt->getEmoji();                            echo $egypt->getFlag();
 $countries = countries();                           $whereCountries = \Rinvex\Country\CountryLoader::where('geo.continent', ['OC' => 'Oceania']);
 ```
 
-> **Note:** This package is framework-agnostic, so it's compatible with any PHP framework whatsoever without any dependencies at all, except for the PHP version itself **^7.0**. Awesome, huh? :smiley:
+> **Note:** This package is framework-agnostic, so it's compatible with any PHP framework whatsoever without any dependencies at all, except for the PHP version itself **^8.1**. Awesome, huh? :smiley:
 
 
 ## Table Of Contents