make cmd short short consistency and change docs

Signed-off-by: allencloud <allen.sun@daocloud.io>

contrib/completion/zsh/_docker

@@ -538,7 +538,7 @@ __docker_networks_names() {
 __docker_network_commands() {
     local -a _docker_network_subcommands
     _docker_network_subcommands=(
-        "connect:Connects a container to a network"
+        "connect:Connect a container to a network"
         "create:Creates a new network with a name specified by the user"
         "disconnect:Disconnects a container from a network"
         "inspect:Displays detailed information on a network"
@@ -694,7 +694,7 @@ __docker_volume_commands() {
     local -a _docker_volume_subcommands
     _docker_volume_subcommands=(
         "create:Create a volume"
-        "inspect:Return low-level information on a volume"
+        "inspect:Display detailed information on one or more volumes"
         "ls:List volumes"
         "rm:Remove a volume"
     )

docs/reference/commandline/network_connect.md

@@ -12,7 +12,7 @@ parent = "smn_cli"
 
     Usage:  docker network connect [OPTIONS] NETWORK CONTAINER
 
-    Connects a container to a network
+    Connect a container to a network
 
       --alias=[]         Add network-scoped alias for the container
       --help             Print usage

docs/reference/commandline/node_inspect.md

@@ -13,7 +13,7 @@ parent = "smn_cli"
 
     Usage: docker node inspect [OPTIONS] self|NODE [NODE...]
 
-    Return low-level information on a volume
+    Display detailed information on one or more nodes
 
       -f, --format=       Format the output using the given go template.
       --help              Print usage

docs/reference/commandline/service_inspect.md

@@ -14,7 +14,7 @@ parent = "smn_cli"
 ```Markdown
 Usage:	docker service inspect [OPTIONS] SERVICE [SERVICE...]
 
-Inspect a service
+Display detailed information on one or more services
 
 Options:
   -f, --format string   Format the output using the given go template

docs/reference/commandline/volume_inspect.md

@@ -12,7 +12,7 @@ parent = "smn_cli"
 
     Usage: docker volume inspect [OPTIONS] VOLUME [VOLUME...]
 
-    Return low-level information on a volume
+    Display detailed information on one or more volumes
 
       -f, --format=       Format the output using the given go template.
       --help              Print usage

man/docker-volume.1.md

@@ -47,7 +47,7 @@ referenced by a container.
   See **docker-volume-create(1)** for full documentation on the **create** command.
 
 **inspect**
-  Return low-level information on a volume
+  Display detailed information on one or more volumes
   See **docker-volume-inspect(1)** for full documentation on the **inspect** command.
 
 **ls**