Hey,
Just a quick heads up on this one, I ran in to the same issue they did where the config file was named config.conf and didn't work but that's because the rclone FAQ here https://github.com/binhex/documentation/blob/master/docker/faq/rclone.md says to run "
rclone config --config /config/rclone/config/config.conf", you might want to tweak that.