added doc to cks and acl rule (#229)

Author: kiranchavala

website/docs/r/kubernetes_cluster.html.markdown

@@ -52,6 +52,9 @@ The following arguments are supported:
 * `state` - (Optional) The state of the Kubernetes cluster. Defaults to `"Running"`.
 * `project` - (Optional) The project to assign the Kubernetes cluster to.
 * `noderootdisksize` - (Optional) root disk size in GB for each node.
+* `docker_registry_url` - (Optional) URL for the docker image private registry
+* `docker_registry_username` - (Optional) password for the docker image private registry
+* `docker_registry_password"` - (Optional) user name for the docker image private registry
 
 ## Attributes Reference
 

website/docs/r/network_acl_rule.html.markdown

@@ -77,3 +77,18 @@ The `rule` block supports:
 The following attributes are exported:
 
 * `id` - The ACL ID for which the rules are created.
+
+## Import
+
+Network ACL Rules can be imported; use `<NETWORK ACL Rule ID>` as the import ID. For
+example:
+
+```shell
+terraform import cloudstack_network_acl_rule.default e8b5982a-1b50-4ea9-9920-6ea2290c7359
+```
+
+When importing into a project you need to prefix the import ID with the project name:
+
+```shell
+terraform import cloudstack_network_acl_rule.default my-project/e8b5982a-1b50-4ea9-9920-6ea2290c7359
+```