Replace docker command from 'docker daemon' to 'dockerd'

Signed-off-by: yuexiao-wang <wang.yuexiao@zte.com.cn>
Upstream-commit: ed38ec18bf
Component: cli

components/cli/docs/extend/plugins_authorization.md

@@ -112,7 +112,7 @@ Authorization plugins can be loaded without restarting the daemon. Refer
 to the [`dockerd` documentation](../reference/commandline/dockerd.md#configuration-reloading) for more information.
 
 ```bash
-$ docker daemon --authorization-plugin=plugin1 --authorization-plugin=plugin2,...
+$ dockerd --authorization-plugin=plugin1 --authorization-plugin=plugin2,...
 ```
 
 Docker's authorization subsystem supports multiple `--authorization-plugin` parameters.

components/cli/docs/reference/commandline/dockerd.md

@@ -574,7 +574,7 @@ options for `zfs` start with `zfs` and options for `btrfs` start with `btrfs`.
     **size** cannot be smaller than **btrfs.min_space**.
 
     Example use:
-        $ docker daemon -s btrfs --storage-opt btrfs.min_space=10G
+        $ dockerd -s btrfs --storage-opt btrfs.min_space=10G
 
 #### Overlay2 options
 
@@ -1213,7 +1213,7 @@ The `--tls*` options enable use of specific certificates for individual daemons.
 Example script for a separate “bootstrap” instance of the Docker daemon without network:
 
 ```bash
-$ docker daemon \
+$ dockerd \
         -H unix:///var/run/docker-bootstrap.sock \
         -p /var/run/docker-bootstrap.pid \
         --iptables=false \