Fix DDEV url [skip ci]

README.md

 *Software and tools for creating and sharing a development environment.*
 
 * [Ansible](https://www.ansible.com/) - A radically simple orchestration framework.
-* [DDEV](https://github.com/drud/ddev) - a local web development environment system for PHP.
+* [DDEV](https://github.com/ddev/ddev) - a local web development environment system for PHP.
 * [Docker](https://www.docker.com/) - A containerization platform.
 * [Docker PHP Extension Installer](https://github.com/mlocati/docker-php-extension-installer) - Easily install PHP extensions in Docker containers.
 * [Docksal](https://github.com/docksal/docksal) - Unified, Docker :whale: powered web development environments for macOS, Windows, and Linux.