Sw/updating api docs

[seanwatters]

• Updated the generate.md file to separate the commands from the files generated (reading was awkward before)
• added JSON API generator documentation to the generate page
• Updated the example page to match what the API generator produces in the controller
• Added info to the json-api.md for use with the API generator in addition to the custom API documentation that was already there (linked to generator docs)

[drujensen]

thanks @seanwatters