You will have been given an IP address to use this with.
To use:
curl -sLO https://github.com/TonyMasse/minion/raw/main/install-salt-minion.sh ; bash ./install-salt-minion.sh <THE_IP_YOU_GOT_PROVIDED>
Like for example (if you have been given 1.2.3.4 as an IP):
curl -sLO https://github.com/TonyMasse/minion/raw/main/install-salt-minion.sh ; bash ./install-salt-minion.sh 1.2.3.4