message: Added react-dom as peer dependency
  Wasn't sure whether to but it does directly use ReactDOM to render now and it mirrors the react-native peer dependency in the NavigationReactNative package
diff: "peerDependencies": {
  "navigation": "*",
  "navigation-react": "*",
  - "react": "*"
  + "react": "*",
  + "react-dom": "*"
  },
  "author": "Graham Mendick",
  "license": "Apache-2.0",
  