npm: updated the readme used as main page for UPM modules on NPM
npm: updated the readme used as main page for UPM modules on NPM

Signed-off-by: Mihai Tudor Panu <a27de6130c5d32f5817bf40bb8b348582f37a8af@intel.com>

malikabhi05/upm,stefan-andritoiu/upm,g-vidal/upm,malikabhi05/upm,Propanu/upm,pylbert/upm,sasmita/upm,Propanu/upm,skiselev/upm,pylbert/upm,spitfire88/upm,stefan-andritoiu/upm,whbruce/upm,sasmita/upm,Propanu/upm,malikabhi05/upm,g-vidal/upm,sasmita/upm,intel-iot-devkit/upm,skiselev/upm,nitirohilla/upm,stefan-andritoiu/upm,Propanu/upm,intel-iot-devkit/upm,jontrulson/upm,Jon-ICS/upm,Jon-ICS/upm,spitfire88/upm,pylbert/upm,Propanu/upm,g-vidal/upm,g-vidal/upm,intel-iot-devkit/upm,jontrulson/upm,sasmita/upm,skiselev/upm,intel-iot-devkit/upm,spitfire88/upm,Jon-ICS/upm,skiselev/upm,whbruce/upm,Jon-ICS/upm,stefan-andritoiu/upm,stefan-andritoiu/upm,spitfire88/upm,jontrulson/upm,malikabhi05/upm,pylbert/upm,stefan-andritoiu/upm,intel-iot-devkit/upm,nitirohilla/upm,whbruce/upm,skiselev/upm,spitfire88/upm,pylbert/upm,Jon-ICS/upm,intel-iot-devkit/upm,sasmita/upm,jontrulson/upm,skiselev/upm,pylbert/upm,g-vidal/upm,nitirohilla/upm,nitirohilla/upm,Propanu/upm,whbruce/upm,g-vidal/upm,malikabhi05/upm,whbruce/upm,jontrulson/upm,nitirohilla/upm,malikabhi05/upm