CONTRIBUTING: update link to Code of Conduct
CONTRIBUTING: update link to Code of Conduct

Our CoC is now hosted on our site and is no longer a separate repository.
dhoppe/modulesync_config,dhoppe/modulesync_config,voxpupuli/modulesync_config,dhoppe/modulesync_config,voxpupuli/modulesync_config,puppet-community/modulesync_config,voxpupuli/modulesync_config,dhoppe/modulesync_config,voxpupuli/modulesync_config