Changed the publish config Command

The previous command doesnt work with L5

Author: wanchopeblanco

README.md

@@ -29,7 +29,7 @@ Alias the PushNotification facade by adding it to the aliases array in the `app/
 
 Copy the config file into your project by running
 ```
-php artisan config:publish davibennun/laravel-push-notification
+php artisan vendor:publish --provider="Vendor/Davibennun/LaravelPushNotification/LaravelPushNotificationServiceProvider" --tag="config"
 ```
 
 This will generate a config file like this