Documentation update needed?

[services4smb]

I'm submitting a ... (check one with "x")

• [ X] question
• [ ] any problem or bug report
• [ ] feature request

Ref. [https://github.com/ionic-team/ionic-native-google-maps/tree/master/documents/markeroptions]

I have been trying to position my marker icon using the 'anchor' option, but following the documentation nothing happens. Moving 'anchor' inside 'icon: {}' it works as expected.

let options: MarkerOptions = {
  icon: {
    url: 'assets/marker_icon.png',
    size: {
      width: 32,
      height: 24
    },
    anchor: [16, 32]
  },

  title: 'Hello World'
... etc.
}