use structured fact with fqdn and update REFERENCE.md accordingly

3 jobs for 48-use-structured-fact-with-fqdn in 27 minutes and 40 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Syntax
passed #6247
syntax lint metadata_lint check:symlinks check:git_ignore check:dot_underscore check:test_file rubocop-Ruby 2.5.1-Puppet ~> 5.5

00:00:47

 
  Unit
passed #6248
parallel_spec-Ruby 2.5.1-Puppet ~> 5.5

00:00:53

 
  Acceptance
passed #6249
puppet-tests
acceptance with puppet5

00:25:59