Add changelog
Add changelog

Signed-off-by: Lance Albertson <3161cdc7bf197e4c3a35b9cbe358c79910f27e90@osuosl.org>

chef-cookbooks/etcd,chef-brigade/etcd-cookbook,spheromak/etcd-cookbook,spheromak/etcd-cookbook,chef-brigade/etcd-cookbook,chef-cookbooks/etcd,chef-cookbooks/etcd,spheromak/etcd-cookbook,chef-brigade/etcd-cookbook