README updates

README.md

@@ -3,4 +3,69 @@ https://travis-ci.org/nickrusso42518/slt-netdevops.svg?branch=master)](
 https://travis-ci.org/nickrusso42518/slt-netdevops)
 
 # Safari Live Training - Network DevOps
-Actively in development ... check back soon!
+Source code for the training course. Please contact me with any questions.
+Before beginning, be sure you know how to use `git` at a basic level on
+your computer. I teach `git` in the course so if you don't know how
+to clone this repository yet, do not worry. For this course, only
+Linux platforms should be used for the Ansible control/development machine.
+
+> Contact information:\
+> Email:    njrusmc@gmail.com\
+> Twitter:  @nickrusso42518
+
+  * [Download Instructions](#download-instructions)
+  * [Usage](#usage)
+
+## Download Instructions
+The easiest way to consume this code is to clone it using SSH or HTTPS.
+
+SSH: `git clone git@github.com:nickrusso42518/slt-netdevops`
+
+or
+
+HTTPS: `git clone https://github.com/nickrusso42518/slt-netdevops`
+
+After cloning, you should see the following file system structure:
+
+```
+$ tree
+.
+├── ansible.cfg
+├── hosts.yml
+├── LICENSE
+├── ntp_config.yml
+├── README.md
+├── requirements.txt
+└── test.yml
+```
+
+Ensure you have Python 2.7 (not Python 3) installed along with pip.
+
+> Visit https://www.python.org/downloads/ to download Python.
+
+`sudo python -m ensurepip`
+
+or
+
+`sudo easy_install pip`
+
+You can install the specific packages (really just Ansible and a YAML linter)
+using the  following command:
+
+`pip install -r requirements.txt`
+
+You should have access to the `ansible` command on the correct version.
+
+```
+$ ansible --version
+ansible 2.6.2
+```
+
+## Usage
+This repository is kept minimal since the main point of this course is
+teaching the fundamentals of Network DevOps, not Ansible as a specific tool.
+  * To edit NTP server variables, open `hosts.yml` and update the
+    `ntp_server` variables using valid IPv4 addresses.
+  * To run the playbook, run `ansible-playbook ntp_config.yml` from the shell.
+  * To test the playbook, run `ansible-playbook test.yml` from the shell. This
+    mimics whta Travis CI does each time code is committed to Github.