change laravel localization link in the readme (martinlindhe#79)

Author: sandofvega

README.md

@@ -2,7 +2,7 @@
 [![Build Status](https://travis-ci.org/martinlindhe/laravel-vue-i18n-generator.png?branch=master)](https://travis-ci.org/martinlindhe/laravel-vue-i18n-generator)
 
 
-Laravel 5 package that allows you to share your [Laravel localizations](http://laravel.com/docs/5.1/localization)
+Laravel 5 package that allows you to share your [Laravel localizations](https://laravel.com/docs/5.8/localization)
 with your [vue](http://vuejs.org/) front-end, using [vue-i18n](https://github.com/kazupon/vue-i18n) or [vuex-i18n](https://github.com/dkfbasel/vuex-i18n).