README.md shows malformed JSON in example

[dayer4b]

In the README.md, the example given for a .shipwright.json that includes maps is not well-formed JSON:

{
  "version": 1.0,

  "namespace": "shipwright",
  "names": {
    "/": "shipwright/shared",
    "/foo": "shipwright/awesome_sauce"
}

This should be:

{
  "version": 1.0,

  "namespace": "shipwright",
  "names": {
    "/": "shipwright/shared",
    "/foo": "shipwright/awesome_sauce"
  }
}

[graingert]

@dayer4b PR?