Add documentation for CLI queue manager in job_managers.ini.sample.
Add documentation for CLI queue manager in job_managers.ini.sample.

jmchilton/pulsar,ssorgatem/pulsar,galaxyproject/pulsar,galaxyproject/pulsar,jmchilton/lwr,jmchilton/pulsar,natefoo/pulsar,jmchilton/lwr,natefoo/pulsar,ssorgatem/pulsar