The commands in the documentation don't work

[liquidpeachy]

I'm following the tutorial provided to create wordpress with litespeed and docker with my own domain.

When I get to the commands to add my domain, it just returns this:
OPTIONS -D, --domain [DOMAIN_NAME] Example: database.sh -D example.com Will auto generate Database/username/password for the domain -D, --domain [DOMAIN_NAME] -U, --user [xxx] -P, --password [xxx] -DB, --database [xxx] Example: database.sh -D example.com -U USERNAME -P PASSWORD -DB DATABASENAME Will create Database/username/password by given -H, --help Display help and exit.

Any idea?