module: improved doc for modules_dir and ignore params
module: improved doc for modules_dir and ignore params

spiette/puppet-selinux,javins/puppet-selinux,danjung/puppet-selinux,spiette/puppet-selinux,EslamElHusseiny/puppet-selinux,EslamElHusseiny/puppet-selinux,javins/puppet-selinux,BioIQ/puppet-selinux,infoxchange/puppet-selinux,infoxchange/puppet-selinux,BioIQ/puppet-selinux,danjung/puppet-selinux