Apply templates to all concepts and tasks to fix double bullets in TOC (#9149)

* Apply concept template to fix double bullet issue.

* Apply concept template

* Apply templates to tasks

content/en/docs/tasks/administer-cluster/cluster-management.md

@@ -3,15 +3,22 @@ reviewers:
 - lavalamp
 - thockin
 title: Cluster Management
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 This document describes several topics related to the lifecycle of a cluster: creating a new cluster,
 upgrading your cluster's
 master and worker nodes, performing node maintenance (e.g. kernel upgrades), and upgrading the Kubernetes API version of a
 running cluster.
 
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 ## Creating and configuring a Cluster
 
 To install Kubernetes on a set of machines, consult one of the existing [Getting Started guides](/docs/setup/) depending on your environment.
@@ -211,3 +218,5 @@ kubectl convert -f pod.yaml --output-version v1
 ```
 
 For more options, please refer to the usage of [kubectl convert](/docs/reference/generated/kubectl/kubectl-commands/#convert) command.
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