Update Laravel 7.x

Author: AndreiDecuseara

README.md

@@ -18,7 +18,7 @@ If you don't already have an Apache local environment with PHP and MySQL, use on
 
 Also, you will need to install Composer: https://getcomposer.org/doc/00-intro.md
 
-And Laravel: https://laravel.com/docs/6.x/installation
+And Laravel: https://laravel.com/docs/7.x/installation
 
 ## Installation