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/concepts/workloads/pods/pod.md

@@ -1,15 +1,21 @@
 ---
 reviewers:
 title: Pods
+content_template: templates/concept
 weight: 20
 ---
 
-{{< toc >}}
-
+{{% capture overview %}}
 
 _Pods_ are the smallest deployable units of computing that can be created and
 managed in Kubernetes.
 
+{{% /capture %}}
+
+{{< toc >}}
+
+{{% capture body %}}
+
 ## What is a Pod?
 
 A _pod_ (as in a pod of whales or pea pod) is a group of one or more containers
@@ -199,3 +205,5 @@ spec.containers[0].securityContext.privileged: forbidden '<*>(0xc20b222db0)true'
 Pod is a top-level resource in the Kubernetes REST API. More details about the
 API object can be found at:
 [Pod API object](/docs/reference/generated/kubernetes-api/{{< param "version" >}}/#pod-v1-core).
+
+{{% /capture %}}