Example is incomplete

[Evan LeCompte]

PetStore example is incomplete:

https://github.com/readmeio/oas/blob/master/examples/petstore/pets.js#L4

var Pet = require("../service/PetService");

^ this path ../service/PetService does not exist

[Gregory Koberger]

Ah, that's not meant to be run! Just an example :)