Example command in documentation failing

[oceanites]

Because of some other errors I could fix now, I to debug the FORCE_CREDENTIALS variable and ran the following command (documentation) as this command will only print the container's FORCE_CREDENTIALS variable:

docker run \
  -v /my/local/folder:/opt/data \
  --user "$(id -u):$(id -g)" \
  --env FORCE_CREDENTIALS=/app/credentials \
  -v $HOME:/app/credentials \
  davidfrantz/force \
  force-level1-csd -h

However, this just returned the error /home/docker/bin/force-level1-csd: invalid option -- 'h' for me.
So either the documentation needs an update there or the bash script.