Added simple JSON Schema validation example.
This is a demo of machine validation of the inventory JSON. The JSON schema file is available here: https://github.com/presidential-innovation-fellows/code-gov-web/blob/master/src/assets/schemas/2.0.0.json
example invocation
npm install
wget 'https://github.com/presidential-innovation-fellows/code-gov-web/blob/master/src/assets/schemas/2.0.0.json'
mv 2.0.0.json schema.json
node validate.js