Update README.md

Author: arashmehrani

README.md

@@ -1,5 +1,5 @@
 # persian language for laravel framework
-###### available versions : -> 5.8.*
+###### available versions : -> 5.8.* and 7.*
 **how to use ?**
 1. into your laravel project go to the this address: `\resources\lang` and past our `fa` directory in there.
 2. then into your laravel project go to the this address: `\config` and open `app.php` then search for `'locale' => 'en'` and change it to `'locale' => 'fa'`