Authored by Justin R. Miller

update README for our tile sources

... ... @@ -10,7 +10,7 @@ Undergoing rapid development, so the `develop` branch is currently recommended.
Major differences from [Alpstein fork of Route-Me](https://github.com/Alpstein/route-me):
* Requires iOS 5.0 and above.
* Canonical source for [MapBox](http://mapbox.com) & [MBTiles](http://mbtiles.org) tile source integration code.
* [MapBox](http://mapbox.com) & [MBTiles](http://mbtiles.org) tile source integration code.
* [UTFGrid interactivity](http://mapbox.com/mbtiles-spec/utfgrid/).
* Removal of two-finger double-tap gesture for zoom out (to speed up two-finger single-tap recognition like MapKit).
* Different default starting location for maps.
... ...