Fixes #9: Install required roles in current directory.

.gitignore

@@ -1,3 +1,4 @@
 *.vagrant
 .DS_Store
 *.retry
+roles*

README.md

@@ -15,7 +15,7 @@ This is a work in progress, and is mostly a means for me to document my current
   1. [Install Ansible](http://docs.ansible.com/intro_installation.html).
   2. Ensure Apple's command line tools are installed (`xcode-select --install` to launch the installer).
   3. Clone this repository to your local drive.
-  4. Run the command `$ ansible-galaxy install -r requirements.txt` inside this directory to install required Ansible roles.
+  4. Run the command `$ ansible-galaxy install -r requirements.yml` inside this directory to install required Ansible roles.
   5. Run `ansible-playbook main.yml -i inventory -u [username] -U [username] --ask-sudo-pass` from the same directory as this README file (substitute `[username]` for your macOS account username). Enter your account password when prompted.
 
 ## Included Applications / Configuration

ansible.cfg

@@ -0,0 +1,2 @@
+[defaults]
+roles_path = ./roles

requirements.txt

@@ -1,2 +0,0 @@
-geerlingguy.dotfiles
-geerlingguy.homebrew

requirements.yml

@@ -0,0 +1,3 @@
+---
+- name: geerlingguy.dotfiles
+- name: geerlingguy.homebrew