Add things that should not be in Puppet
Add things that should not be in Puppet

This commit moves "things that should not be in Puppet" from the style guides since it is specific to this repo.
alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet