minor edits.

Signed-off-by: Simei He <hesimei@zju.edu.cn>

docs/sources/articles/networking.md

@@ -122,15 +122,17 @@ Finally, several networking options can only be provided when calling
     [Binding container ports](#binding-ports)
 
 To supply networking options to the Docker server at startup, use the
-`DOCKER_OPTS` in the Docker upstart configuration file. For Ubuntu, edit the
-variable in `/etc/default/docker` and `/etc/sysconfig/docker` for Centos.
+`DOCKER_OPTS` variable in the Docker upstart configuration file. For Ubuntu, edit the
+variable in `/etc/default/docker` or `/etc/sysconfig/docker` for CentOS.
 
 The following example illustrates how to configure Docker on Ubuntu to recognize a
-newly build bridge. Edit the `/etc/default/docker` file:
+newly built bridge. 
+
+Edit the `/etc/default/docker` file:
 
     $ echo 'DOCKER_OPTS="-b=bridge0"' >> /etc/default/docker 
 
-Then, restart the Docker server.
+Then restart the Docker server.
 
     $ sudo service docker start
 

docs/sources/reference/commandline/cli.md

@@ -2195,7 +2195,7 @@ available in the default container, you can set these using the `--ulimit` flag.
 > If you do not provide a `hard limit`, the `soft limit` will be used for both
 values. If no `ulimits` are set, they will be inherited from the default `ulimits`
 set on the daemon.
-> `as` option is disabled for now. In other words, the following script is not supported:
+> `as` option is disabled now. In other words, the following script is not supported:
 >   `$docker run -it --ulimit as=1024 fedora /bin/bash`
 
 ## save