document Laravel as default

[bingalls]

Nice! Please add the following to README.md to make Laravel the default standard.
Link (or copy) Laravel into the global CodeSniffer directory.
Mac OSX Homebrew example:
ln -s LaravelCodeSniffer/Standards/Laravel/ /usr/local/etc/php-code-sniffer/Standards/
Set Laravel as default:
phpcs --config-set default_standard Laravel
Details at https://github.com/squizlabs/PHP_CodeSniffer/wiki/Configuration-Options
AFAIK, this also applies, and simplifies https://github.com/FriendsOfPHP/PHP-CS-Fixer