Minor change

Author: s-moon

README.md

@@ -5,7 +5,7 @@ Includes a model and interface for communicating with five popular Geocoding pro
   * [Google Maps](https://developers.google.com/maps/) - [docs](https://developers.google.com/maps/documentation/geocoding/)
   * [Yahoo! BOSS Geo Services](http://developer.yahoo.com/boss/geo/) - [docs](http://developer.yahoo.com/geo/placefinder/guide/index.html)
   * [Bing Maps (aka Virtual Earth)](http://www.microsoft.com/maps/) - [docs](http://msdn.microsoft.com/en-us/library/ff701715.aspx)
-  * :warning: MapQuest [(Comercial API)](http://www.mapquestapi.com/) - [docs](http://www.mapquestapi.com/geocoding/)
+  * :warning: MapQuest [(Commercial API)](http://www.mapquestapi.com/) - [docs](http://www.mapquestapi.com/geocoding/)
   * :warning: MapQuest [(OpenStreetMap)](http://open.mapquestapi.com/) - [docs](http://open.mapquestapi.com/geocoding/)
 
 The API returns latitude/longitude coordinates and normalized address information.  This can be used to perform address validation, real time mapping of user-entered addresses, distance calculations, and much more.