fix link to stamen maps
@ -152,7 +152,7 @@ Due to recent changes to the Google Maps API, you need a [API Key](https://devel
*required in order to use maptype*
`maptype:`
* [Stamen Maps ](maps.stamen.com)
* [Stamen Maps ](http://maps.stamen.com)
* `toner`
* `toner-lines`
* `toner-labels`