trying to add wifi connection to sdcard image; need help

[AndreV84]

@tokk-nv
Could you give a hand figuring exact steps to add an automatic wifi connection bring up to the default nvidia supplied sdcard image for nx/nano, please?
So that after flashing the sdcard at HostPC, then editing files on the sdcard filesystem from Host PC
then after inserting the sdcard into a robot
the robot will have the internet connection already so it can be ssh'ed in?
Thank you very much

reference similar implementation
https://github.com/duckietown/duckietown-shell-commands/blob/daffy/init_sd_card/constants.py#L34-L66
https://docs.duckietown.org/daffy/opmanual_duckiebot/out/duckiebot_network.html