atom-cform package
A Atom port of the Sublime Text CloudFormation package https://github.com/beaknit/cform
demo
Open a *.json file and start typing to get snippet and scaffolding.

usage
- Type 
start- a CloudFormation template scaffold will appear - Under each section, type the thing you're trying to make (eg, 
parameter,output, etc) and it will populate the text for you. - Tab through the different fields and fill in your values
 - Save it with the extension 
cform,templateorcloudformationand run it through the CloudFormation console - Have fun
 
thanks to
This plugin was only possible after reading this article by @yuyawata