added business links ;)

Author: Peter

README.md

@@ -8,10 +8,16 @@ Per default it uses OpenStreetMap data but can import other data sources.
 GraphHopper for the Web
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-See GraphHopper in action on [GraphHopper Maps](https://graphhopper.com/maps):
+See GraphHopper in action on [GraphHopper Maps](https://graphhopper.com/maps)
 
 [![GraphHopper Maps](https://karussell.files.wordpress.com/2014/12/graphhopper-maps-0-4-preview.png)](https://graphhopper.com/maps)
 
+GraphHopper Maps uses the [Directions API for Business](https://graphhopper.com/#directions-api), which provides 
+routing through GraphHopper and a fast address search via [Photon](https://github.com/komoot/photon).
+Additionally the map tiles from various Providers like [Lyrk](https://geodienste.lyrk.de/pakete)
+are used and all is available for free and through HTTPS for a secure route planning experience!
+
+
 GraphHopper for Mobile
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