docs: man page: typo fix in docker_1
@@ -12,7 +12,7 @@ docker \- Docker image and container command line interface
**docker** is a client for interacting with the daemon (see **dockerd(8)**) through the CLI.
The Docker CLI has over 30 commands. The commands are listed below and each has
-its own man page which explain usage and arguments.
+its own man page which explains usage and arguments.
To see the man page for a command run **man docker <command>**.
