chore: Add better description of class

Author: barbeau

complete/src/main/java/com/example/android/whileinuselocation/data/SharedLocationManager.kt

@@ -34,6 +34,8 @@ import javax.inject.Inject
 private const val TAG = "SharedLocationManager"
 
 /**
+ * Wraps the LocationServices and fused location provider in callbackFlow
+ *
  * Derived in part from https://github.com/android/location-samples/blob/main/LocationUpdatesBackgroundKotlin/app/src/main/java/com/google/android/gms/location/sample/locationupdatesbackgroundkotlin/data/MyLocationManager.kt
  * and https://github.com/googlecodelabs/kotlin-coroutines/blob/master/ktx-library-codelab/step-06/myktxlibrary/src/main/java/com/example/android/myktxlibrary/LocationUtils.kt
  */