The site covers all bases. The content of the script is shown on the landing page - and you have to visit it to see the instructions to run it. The comment also explains how to do it through through the configuration UI.
That means you have 3 choices:
* Use curl to run the script as directed
* copy/paste the command line content, edit if desired, and run
* follow the instructions to update through the UI.
That means you have 3 choices:
* Use curl to run the script as directed
* copy/paste the command line content, edit if desired, and run
* follow the instructions to update through the UI.