Add docker-update description ommited in docker.1.md

Signed-off-by: lixiaobing10051267 <li.xiaobing1@zte.com.cn>

man/docker.1.md

@@ -59,163 +59,8 @@ unix://[/path/to/socket] to use.
   Print version information and quit. Default is false.
 
 # COMMANDS
-**attach**
-  Attach to a running container
-  See **docker-attach(1)** for full documentation on the **attach** command.
-
-**build**
-  Build an image from a Dockerfile
-  See **docker-build(1)** for full documentation on the **build** command.
-
-**commit**
-  Create a new image from a container's changes
-  See **docker-commit(1)** for full documentation on the **commit** command.
-
-**cp**
-  Copy files/folders between a container and the local filesystem
-  See **docker-cp(1)** for full documentation on the **cp** command.
-
-**create**
-  Create a new container
-  See **docker-create(1)** for full documentation on the **create** command.
-
-**diff**
-  Inspect changes on a container's filesystem
-  See **docker-diff(1)** for full documentation on the **diff** command.
-
-**events**
-  Get real time events from the server
-  See **docker-events(1)** for full documentation on the **events** command.
-
-**exec**
-  Run a command in a running container
-  See **docker-exec(1)** for full documentation on the **exec** command.
-
-**export**
-  Stream the contents of a container as a tar archive
-  See **docker-export(1)** for full documentation on the **export** command.
-
-**history**
-  Show the history of an image
-  See **docker-history(1)** for full documentation on the **history** command.
-
-**images**
-  List images
-  See **docker-images(1)** for full documentation on the **images** command.
-
-**import**
-  Create a new filesystem image from the contents of a tarball
-  See **docker-import(1)** for full documentation on the **import** command.
-
-**info**
-  Display system-wide information
-  See **docker-info(1)** for full documentation on the **info** command.
-
-**inspect**
-  Return low-level information on a container or image
-  See **docker-inspect(1)** for full documentation on the **inspect** command.
-
-**kill**
-  Kill a running container (which includes the wrapper process and everything
-inside it)
-  See **docker-kill(1)** for full documentation on the **kill** command.
-
-**load**
-  Load an image from a tar archive
-  See **docker-load(1)** for full documentation on the **load** command.
-
-**login**
-  Log in to a Docker Registry
-  See **docker-login(1)** for full documentation on the **login** command.
-
-**logout**
-  Log the user out of a Docker Registry
-  See **docker-logout(1)** for full documentation on the **logout** command.
-
-**logs**
-  Fetch the logs of a container
-  See **docker-logs(1)** for full documentation on the **logs** command.
-
-**pause**
-  Pause all processes within a container
-  See **docker-pause(1)** for full documentation on the **pause** command.
-
-**port**
-  Lookup the public-facing port which is NAT-ed to PRIVATE_PORT
-  See **docker-port(1)** for full documentation on the **port** command.
-
-**ps**
-  List containers
-  See **docker-ps(1)** for full documentation on the **ps** command.
-
-**pull**
-  Pull an image or a repository from a Docker Registry
-  See **docker-pull(1)** for full documentation on the **pull** command.
-
-**push**
-  Push an image or a repository to a Docker Registry
-  See **docker-push(1)** for full documentation on the **push** command.
-
-**rename**
-  Rename a container.
-  See **docker-rename(1)** for full documentation on the **rename** command.
-
-**restart**
-  Restart one or more containers
-  See **docker-restart(1)** for full documentation on the **restart** command.
-
-**rm**
-  Remove one or more containers
-  See **docker-rm(1)** for full documentation on the **rm** command.
-
-**rmi**
-  Remove one or more images
-  See **docker-rmi(1)** for full documentation on the **rmi** command.
-
-**run**
-  Run a command in a new container
-  See **docker-run(1)** for full documentation on the **run** command.
-
-**save**
-  Save an image to a tar archive
-  See **docker-save(1)** for full documentation on the **save** command.
-
-**search**
-  Search for an image in the Docker index
-  See **docker-search(1)** for full documentation on the **search** command.
-
-**start**
-  Start a container
-  See **docker-start(1)** for full documentation on the **start** command.
-
-**stats**
-  Display a live stream of one or more containers' resource usage statistics
-  See **docker-stats(1)** for full documentation on the **stats** command.
-
-**stop**
-  Stop a container
-  See **docker-stop(1)** for full documentation on the **stop** command.
-
-**tag**
-  Tag an image into a repository
-  See **docker-tag(1)** for full documentation on the **tag** command.
-
-**top**
-  Lookup the running processes of a container
-  See **docker-top(1)** for full documentation on the **top** command.
-
-**unpause**
-  Unpause all processes within a container
-  See **docker-unpause(1)** for full documentation on the **unpause** command.
-
-**version**
-  Show the Docker version information
-  See **docker-version(1)** for full documentation on the **version** command.
-
-**wait**
-  Block until a container stops, then print its exit code
-  See **docker-wait(1)** for full documentation on the **wait** command.
 
+Use "docker help" or "docker --help" to get an overview of available commands.
 
 # RUNTIME EXECUTION OPTIONS