Update readme to support RaspberryPi MiniTablet
Update readme to support RaspberryPi MiniTablet

yishii/RasPiMiniLcdConsole_USBCDC,yishii/RasPiMiniLcdConsole_USBCDC,yishii/RasPiMiniLcdConsole_USBCDC,yishii/RasPiMiniLcdConsole_USBCDC