Merge pull request #367 from royklutman/patch-1

Updated links to Symfony's demo and Laravel Mix

Author: weaverryan

README.md

@@ -9,7 +9,7 @@ and minifying assets. Encore gives you professional asset system
 that's a *delight* to use.
 
 Encore is inspired by [Webpacker](https://github.com/rails/webpacker) and
-[Mix](https://laravel.com/docs/5.4/mix), but stays in the spirit of
+[Mix](https://laravel.com/docs/5.6/mix), but stays in the spirit of
 Webpack: using its features, concepts and naming conventions for a familiar
 feel. It aims to solve the most common Webpack use cases.
 
@@ -19,4 +19,4 @@ feel. It aims to solve the most common Webpack use cases.
 ## Documentation
 
 [Read the Documentation on symfony.com](http://symfony.com/doc/current/frontend.html)
-or view a demo application: [symfony/symfony-demo](https://github.com/symfony/symfony-demo).
+or view a demo application: [symfony/demo](https://github.com/symfony/demo).