* Update nodes.md
In the previous doc, the doc is "用户可以手动将具有 `NoExecute` 或 `NoSchedule` 效果的
`node kubernetes.io/out-of-service` ", please note that it is `node kubernetes.io/out-of-service`, there is a space between "node" and "kubernetes.io/out-of-service",
after read the related doc, I think that this should be "node.kubernetes.io/out-of-service", this is defined node label in k8s. Please see https://kubernetes.io/docs/reference/labels-annotations-taints/#node-kubernetes-io-out-of-service
* Update nodes.md
Fix line 878 per comment
to be more accurate. It currently says failed,
but then following paragraph includes `Succeeded`.
It seems like replacing "failed" with "terminated" is more accurate.
This is the first step to rename 'zh' to 'zh-cn'. There are several reasons why we rename the language name.
- The upstream docsy theme changed the language name, leading to many warnings during site build;
The side-effect is that the i18n strings are no longer working.
- We believe renaming the language is the right thing to do, because this move can make room for other variants of Chinese language, such as 'zh-tw', 'zh-sg' etc.
There would be several follow-ups to this PR, such as fixing the intra-site links, adding redirects etc.
We will lock up changes to zh/zh-cn pages for the moment, until this one gets in.
This PR is based on commit cdad0a7342.