Turns out it includes extensive documentation for all states supported by Salt, generated from the online documentation. Compare this to the Puppet manual:
$ man puppet
PUPPET(8) Puppet manual PUPPET(8)
NAME
puppet
See ´puppet help´ for help on available puppet subcommands
Obviously no-one will be using everything that Salt supports, so it would be nice if it was broken into sub-sections. But I much prefer having all documentation available in a manual to looping through every module and run "rdoc" as in the Puppet case.Any sufficiently popular configuration management tool will have equally long documentation.
There are a couple of simpler options available: