add link

Author: freekmurze

README.md

@@ -4,7 +4,7 @@
 [![Quality Score](https://img.shields.io/scrutinizer/g/beyondcode/laravel-dump-server.svg?style=flat-square)](https://scrutinizer-ci.com/g/beyondcode/laravel-dump-server)
 [![Total Downloads](https://img.shields.io/packagist/dt/beyondcode/laravel-dump-server.svg?style=flat-square)](https://packagist.org/packages/beyondcode/laravel-dump-server)
 
-Bringing the Symfony Var-Dump Server to Laravel.
+Bringing the [Symfony Var-Dump Server](https://symfony.com/doc/current/components/var_dumper.html#the-dump-server) to Laravel.
 
 This package will give you a dump server, that collects all your `dump` call outputs, so that it does not interfere with HTTP / API responses.