Updating README.md
Updating README.md

zhihu/puppet-cdh,tomahc/puppet-cdh,wikimedia/operations-puppet-cdh4,deric/puppet-cdh,wikimedia/operations-puppet-cdh4,2014/puppet-cdh,zhihu/puppet-cdh,tomahc/puppet-cdh,wikimedia/operations-puppet-cdh4,deric/puppet-cdh,2014/puppet-cdh,deric/puppet-cdh