Fix Ansible link

Author: Brian-Williams

README.md

@@ -18,7 +18,7 @@ This is a work in progress, and is mostly a means for me to document my current
 ## Installation
 
   1. Ensure Apple's command line tools are installed (`xcode-select --install` to launch the installer).
-  2. [Install Ansible](http://docs.ansible.com/intro_installation.html).
+  2. [Install Ansible](https://docs.ansible.com/ansible/latest/installation_guide/index.html).
   3. Clone this repository to your local drive.
   4. Run `$ ansible-galaxy install -r requirements.yml` inside this directory to install required Ansible roles.
   5. Run `ansible-playbook main.yml -i inventory --ask-become-pass` inside this directory. Enter your account password when prompted.