cleaned up README
cleaned up README

gubaojian/GBDeviceInfo,lmirosevic/GBDeviceInfo,AutoScout24/GBDeviceInfo,dinhchitrung/GBDeviceInfo,x2on/GBDeviceInfo,jflinter/GBDeviceInfo,gaurav1981/GBDeviceInfo,lmirosevic/GBDeviceInfo,lmirosevic/GBDeviceInfo