Refine the volume mount example

The path here should be absolute, else it would
deem it as volume name.

Also link to release page to contain static binary,
the old link not work, because it is just used to
install docker in os distro, it can not be used
as static binary directly.

Signed-off-by: Kai Qiang Wu(Kennan) <wkqwu@cn.ibm.com>

docs/reference/commandline/run.md

@@ -195,12 +195,13 @@ a container writes files. The `--read-only` flag mounts the container's root
 filesystem as read only prohibiting writes to locations other than the
 specified volumes for the container.
 
-    $ docker run -t -i -v /var/run/docker.sock:/var/run/docker.sock -v ./static-docker:/usr/bin/docker busybox sh
+    $ docker run -t -i -v /var/run/docker.sock:/var/run/docker.sock -v /path/to/static-docker-binary:/usr/bin/docker busybox sh
 
 By bind-mounting the docker unix socket and statically linked docker
-binary (such as that provided by [https://get.docker.com](
-https://get.docker.com)), you give the container the full access to create and
-manipulate the host's Docker daemon.
+binary (refer to [get the linux binary](
+../../installation/binaries.md#get-the-linux-binary)),
+you give the container the full access to create and manipulate the host's
+Docker daemon.
 
 ### Publish or expose port (-p, --expose)