Update Java samples documentation 
Update Java samples documentation 

Add information on additional protocols that are supported now
Eclo/azure-iot-sdks,Eclo/azure-iot-sdks,Eclo/azure-iot-sdks,Eclo/azure-iot-sdks,Eclo/azure-iot-sdks,Eclo/azure-iot-sdks,Eclo/azure-iot-sdks,Eclo/azure-iot-sdks,Eclo/azure-iot-sdks