Changed travis CI badge url in readme
Changed travis CI badge url in readme

Polidea/RxBluetoothKit,Fitbit/RxBluetoothKit,Polidea/RxBluetoothKit,Polidea/RxBluetoothKit,proxyco/RxBluetoothKit,proxyco/RxBluetoothKit,Fitbit/RxBluetoothKit,Fitbit/RxBluetoothKit