Add Homestead and Valet. Reorder.

README.md

 ### PHP Installation
 *Tools to help install and manage PHP on your computer.*
 
-* [HomeBrew](https://brew.sh/) - A package manager for OSX.
 * [Brew PHP Switcher](https://github.com/philcook/brew-php-switcher) - Brew PHP switcher.
+* [HomeBrew](https://brew.sh/) - A package manager for OSX.
+* [Laravel Valet](https://laravel.com/docs/master/valet) - A development environment for macOS.
 * [PHP Brew](https://github.com/phpbrew/phpbrew) - A PHP version manager and installer.
 * [PHP Build](https://github.com/php-build/php-build) - Another PHP version installer.
 * [PHP OSX](https://php-osx.liip.ch/) - A PHP installer for OSX.
 
 * [Ansible](https://www.ansible.com/) - A radically simple orchestration framework.
 * [Docker](https://www.docker.com/) - A containerization platform.
+* [Laravel Homestead](https://laravel.com/docs/master/homestead) - A local development environment for Laravel. 
 * [Laradock](http://laradock.io/) - A full PHP development environment based on Docker.
 * [Puppet](https://puppet.com/) - A server automation framework and application.
 * [Vagrant](https://www.vagrantup.com/) - A portable development environment utility.