Using underscore in the host name prevents you from pinging it via host name. Updating instructions to indicate no underscores.

According to RFC 1123, section 2.1 "Host Names and Numbers" host names are limited to just letters, digits, and hyphens.

* Documentation changes to add new TT01 Hardware

* Changes to clean up docs, update parts and add Desert Monster as a standard build

* try circleci

* add new circle ci badge

Added lines 227 to 231 to remind folk to install gcc / Apple's Command Line for Tools for Xcode if user hasn't either installed.

and what to look for in cars you want to use.

Also add a link to said document.

fixes #220

Correct spelling mistakes.

Probably want to delete gitconfig otherwise people will be submitting changes to their cloned repos as will roscoe :D

Update login and network location to match the current pre-built install that is referenced at the beginning of the tutorial.