Update README with Jetson models

Author: jetsonhacks

README.md

@@ -2,7 +2,7 @@
 This repository holds utilities for working with NVIDIA Jetson Development Kit
 
 # jetsonInfo
-Get information about the NVIDIA Jetson OS environment on NVIDIA Jetson Development Kits (TK1, TX1, TX2, AGX Xavier, Jetson Nano)
+Get information about the NVIDIA Jetson OS environment on NVIDIA Jetson Development Kits (TX1, TX2, AGX Xavier, Xavier NX, Nano, Nano 2GB)
 
 The information about the NVIDIA Jetson Development Kit operating system is spread over a few files. This is a handy tool to use for reference.