Added indication of `RxBleAdapterStateObservable` under `Helpers` section of the Readme page. https://github.com/Polidea/RxAndroidBle/issues/201
Added indication of `RxBleAdapterStateObservable` under `Helpers` section of the Readme page.
https://github.com/Polidea/RxAndroidBle/issues/201

Polidea/RxAndroidBle,Polidea/RxAndroidBle,Polidea/RxAndroidBle