a lightweight battery indicator plugin for the argos gnome extension

it's a lightweight bash script which can be run from the argos gnome extension to show the correct battery percentage readings for the 2012 macbook pro (9.2)

don't forget to set the script's permissions to be executable (e.g. sudo chmod u+x filename.sh)

more details: https://github.com/p-e-w/argos