Update README.md

Author: rbrundritt

README.md

@@ -124,6 +124,7 @@ The following are some ideas to take this project further.
 
 **Open Azure Maps Web SDK modules**
 
+* [Azure Maps Geolocation Control module](https://github.com/Azure-Samples/azure-maps-geolocation-control)
 * [Azure Maps Sync Map module](https://github.com/Azure-Samples/azure-maps-sync-maps)
 * [Azure Maps Services UI module](https://github.com/Azure-Samples/azure-maps-services-ui)