fix issue #11676 #11754, disable RLIMIT_AS,edit DOCKER_OPTS

Signed-off-by: Simei He <hesimei@zju.edu.cn>
Upstream-commit: a4c88adc4d
Component: cli

components/cli/docs/sources/reference/commandline/cli.md

@@ -2198,6 +2198,8 @@ 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:
+>   `$docker run -it --ulimit as=1024 fedora /bin/bash`
 
 ## save