Creating your organization command doesn't work

[18107]

Running the command

docker-compose exec -u zulip zulip \
    "/home/zulip/deployments/current/manage.py generate_realm_creation_link"

at https://github.com/zulip/docker-zulip#creating-your-organization produces the error:
OCI runtime exec failed: exec failed: unable to start container process: exec: "/home/zulip/deployments/current/manage.py generate_realm_creation_link": stat /home/zulip/deployments/current/manage.py generate_realm_creation_link: no such file or directory: unknown

Removing the quotes from the second line as

docker-compose exec -u zulip zulip \
    /home/zulip/deployments/current/manage.py generate_realm_creation_link

produced the realm creation link