fix typo / error regarding etcd and k8s_cluster groups (#8580)

As far as I can tell this is simply a typo that has existed from the beginning. Having it this way around (`etcd` group as a child and thus subset of `k8s_cluster`) mirrors what is written in the preceeding sentence.
pull/8584/head
Tom Janson 2022-02-28 11:54:58 +01:00 committed by GitHub
parent b554246502
commit 3e8e64a3e5
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@ -13,7 +13,7 @@ the _etcd_ group into the _k8s_cluster_, unless you are certain
to do that and you have it fully contained in the latter:
```ShellSession
k8s_cluster ⊂ etcd => kube_node ∩ etcd = etcd
etcd ⊂ k8s_cluster => kube_node ∩ etcd = etcd
```
When _kube_node_ contains _etcd_, you define your etcd cluster to be as well schedulable for Kubernetes workloads.