Merge branch 'master' of https://github.com/kubernetes/kubernetes.github.io into release-1.8

* 'master' of https://github.com/kubernetes/kubernetes.github.io: (23 commits)
  concepts/configuration/manage-compute-resources-container.md: fix a conversion (#4952)
  Update authentication.md (#5281)
  Update static-pod.md for consistency
  Space needed before list in kramdown.
  Update downward-api-volume-expose-pod-information.md
  fix the command output
  fix the command output
  fix the command output
  fix the command output
  fix the command output
  Fix CRD page typo
  fix 404 page
  Update binary_release.md
  Update disruptions.md
  fix the command output
  fix typo
  fix the command output
  Fix curl does not work in zsh
  use the term 'node' for consistency
  fix typo
  ...

docs/admin/authorization/rbac.md

@@ -683,6 +683,7 @@ In order from most secure to least secure, the approaches are:
    NOTE: Permissions given to the "default" service account are available to any pod in the namespace that does not specify a `serviceAccountName`.
 
    For example, grant read-only permission within "my-namespace" to the "default" service account:
+   
    ```shell
    kubectl create rolebinding default-view \
      --clusterrole=view \