Be even clearer about action required in CHANGELOG.md
Be even clearer about action required in CHANGELOG.md

sandstorm-io/vagrant-spk,dwrensha/vagrant-spk,dwrensha/vagrant-spk,sandstorm-io/vagrant-spk,sandstorm-io/vagrant-spk,ndarilek/vagrant-spk,ndarilek/vagrant-spk,dwrensha/vagrant-spk,ndarilek/vagrant-spk