Convert Swagger JSON to RAML/YAML

Here are the steps:

1. Export Swagger JSON into a file on your drive. This JSON should be published on your server at the following URI: /swagger/docs/v1
2. Go to http://editor.swagger.io/#/
3. On the top left corner, select File-> Import File… Point to the local Swagger JSON file you exported in step #1 to open in the Swagger Editor
4. Select Generate Client -> Swagger YAML option from the menu
5. It will generate the YAML that you can validate at http://www.yamllint.com/ site