Update for leanpub preview

manuscript/ha-docker-swarm/shared-storage-ceph.md

@@ -52,7 +52,7 @@ The process takes about 30 seconds, after which, you'll have a MVC (*Minimum Via
     INFO:cephadm:Verifying time synchronization is in place...
     INFO:cephadm:Unit systemd-timesyncd.service is enabled and running
     INFO:cephadm:Repeating the final host check...
-    INFO:cephadm:podman|docker https://geek-cookbook.funkypenguin.co.nz/usr/bin/docker) is present
+    INFO:cephadm:podman|docker (/usr/bin/docker) is present
     INFO:cephadm:systemctl is present
     INFO:cephadm:lvcreate is present
     INFO:cephadm:Unit systemd-timesyncd.service is enabled and running
@@ -143,7 +143,7 @@ Path on master           | Path on non-master
 Back on the ==master== node, run `ceph orch host add <node-name>` once for each other node you want to join to the cluster. You can validate the results by running `ceph orch host ls`
 
 !!! question "Should we be concerned about giving cephadm using root access over SSH?"
-    Not really. Docker is inherently insecure at the host-level anyway (*think what would happen if you launched a global-mode stack with a malicious container image which mounted `/root/.ssh`*), so worrying about cephadm seems a little barn-door-after-horses-bolted. If you take host-level security seriously, consider switching to [Kubernetes]https://geek-cookbook.funkypenguin.co.nz/kubernetes/start/) :) 
+    Not really. Docker is inherently insecure at the host-level anyway (*think what would happen if you launched a global-mode stack with a malicious container image which mounted `/root/.ssh`*), so worrying about cephadm seems a little barn-door-after-horses-bolted. If you take host-level security seriously, consider switching to [Kubernetes](https://geek-cookbook.funkypenguin.co.nz/kubernetes/start/) :) 
 
 ### Add OSDs