add doc for live-restore setting and daemonless containers, fix admin guide menu

Signed-off-by: Charles Smith <charles.smith@docker.com>

docs/reference/commandline/dockerd.md

@@ -56,7 +56,7 @@ Options:
       --ipv6                                 Enable IPv6 networking
       -l, --log-level=info                   Set the logging level
       --label=[]                             Set key=value labels to the daemon
-      --live-restore                         Enable live restore of docker when containers are still running
+      --live-restore                         Enables keeping containers alive during daemon downtime
       --log-driver=json-file                 Default driver for container logs
       --log-opt=map[]                        Default log driver options for containers
       --max-concurrent-downloads=3           Set the max concurrent downloads for each pull
@@ -1025,6 +1025,7 @@ This is a full example of the allowed configuration options on Linux:
 	"storage-driver": "",
 	"storage-opts": [],
 	"labels": [],
+	"live-restore": true,
 	"log-driver": "",
 	"log-opts": [],
 	"mtu": 0,
@@ -1101,6 +1102,7 @@ This is a full example of the allowed configuration options on Windows:
     "storage-driver": "",
     "storage-opts": [],
     "labels": [],
+    "live-restore": true,
     "log-driver": "",
     "mtu": 0,
     "pidfile": "",
@@ -1142,6 +1144,7 @@ The list of currently supported options that can be reconfigured is this:
 - `cluster-store-opts`: it uses the new options to reload the discovery store.
 - `cluster-advertise`: it modifies the address advertised after reloading.
 - `labels`: it replaces the daemon labels with a new set of labels.
+- `live-restore`: Enables [keeping containers alive during daemon downtime](../../admin/live-restore.md).
 - `max-concurrent-downloads`: it updates the max concurrent downloads for each pull.
 - `max-concurrent-uploads`: it updates the max concurrent uploads for each push.
 - `default-runtime`: it updates the runtime to be used if not is