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/run-application/rolling-update-replication-controller.md

@@ -2,12 +2,11 @@
 reviewers:
 - janetkuo
 title: Perform Rolling Update Using a Replication Controller
+content_template: templates/concept
 weight: 80
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-{{< toc >}}
-
-## Overview
+{{% capture overview %}}
 
 {{< note >}}
 **Note**: The preferred way to create a replicated application is to use a
@@ -41,6 +40,12 @@ Rolling updates are initiated with the `kubectl rolling-update` command:
     $ kubectl rolling-update NAME \
         ([NEW_NAME] --image=IMAGE | -f FILE)
 
+{{% /capture %}}
+
+{{< toc >}}
+
+{{% capture body %}}
+
 ## Passing a configuration file
 
 To initiate a rolling update using a configuration file, pass the new file to
@@ -261,3 +266,5 @@ To continue the update from where it failed, retry using the same command.
 
 To roll back to the original state before the attempted update, append the
 `--rollback=true` flag to the original command. This will revert all changes.
+
+{{% /capture %}}