fix invalid flag --insecure-bind-address to --address

docs/getting-started-guides/docker.md

@@ -92,7 +92,7 @@ docker run --net=host -d gcr.io/google_containers/etcd:2.0.12 /usr/local/bin/etc
 ### Step Two: Run the master
 
 ```sh
-docker run --net=host --privileged -d -v /sys:/sys:ro -v /var/run/docker.sock:/var/run/docker.sock  gcr.io/google_containers/hyperkube:v1.0.1 /hyperkube kubelet --api-servers=http://localhost:8080 --v=2 --insecure-bind-address=0.0.0.0 --enable-server --hostname-override=127.0.0.1 --config=/etc/kubernetes/manifests
+docker run --net=host --privileged -d -v /sys:/sys:ro -v /var/run/docker.sock:/var/run/docker.sock  gcr.io/google_containers/hyperkube:v1.0.1 /hyperkube kubelet --api-servers=http://localhost:8080 --v=2 --address=0.0.0.0 --enable-server --hostname-override=127.0.0.1 --config=/etc/kubernetes/manifests
 ```
 
 This actually runs the kubelet, which in turn runs a [pod](../user-guide/pods.md) that contains the other master components.