Update cheatsheets

tldr/kubectl-cluster-info

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# kubectl cluster-info
+
+> Display endpoint information about the Kubernetes master and services in the cluster.
+> More information: <https://kubernetes.io/docs/reference/kubectl/generated/kubectl_cluster-info/>.
+
+- Show basic cluster information:
+
+`kubectl cluster-info`
+
+- Dump current cluster state to standard output (for debugging):
+
+`kubectl cluster-info dump`
+
+- Dump cluster state to a directory:
+
+`kubectl cluster-info dump --output-directory {{path/to/directory}}`
+
+- Use a specific kubeconfig context:
+
+`kubectl cluster-info --context {{context_name}}`