For specifying environment variables please remove the spaces in the example text (below). This caused Bash to interpret them as separate arguments and might be confusing for users simply copying the example.
It would be worth explicitly stating that you need to run/execute the config file in order to set the environment variables (e.g. using the command . config <config_file.sh>), which would be useful for beginner shell users.
A couple of quick suggestions for the 'Getting Started' page at https://cedadev.github.io/padocc/start.html:
. config <config_file.sh>
), which would be useful for beginner shell users.