Explain we're using OvFietsBackend

README.md

@@ -20,7 +20,8 @@ This app is designed to find how many OV-fiets bikes are available as quick as p
 * Show additional information like address, opening hours and other locations at the same station.
 
 ## About the code
-Data comes from [openOV](https://openov.nl) combined with the total availabilty per station kindly provided by [ovfietsbeschikbaar.nl](https://ovfietsbeschikbaar.nl/).
+Data comes from [openOV](https://openov.nl) and is handled by the open source project [OvFietsBackend](https://github.com/cristan/OvFietsBackend).
+This data is combined with the total availability per station which is kindly provided by [ovfietsbeschikbaar.nl](https://ovfietsbeschikbaar.nl/).
 
 The code is pretty much using the latest technologies available (at least at the time of writing)
 * 100% Jetpack Compose