* Add note about need for lxd init
As a first time user, I got a little lost, doing google searches for how to get lxd basically functional on my box.
There were a lot of hand edits and tweaks suggested on various pages, until I discovered that all I had to do is run "lxd init" and follow the prompts.
* Update local.md
The docs say to backup, start a new application called new-etcd, but then to restore to etcd/0 and not new-etcd/0. Fixing that so it restores to that newly created unit.