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/debug-application-cluster/troubleshooting.md

@@ -2,9 +2,12 @@
 reviewers:
 - brendandburns
 - davidopp
+content_template: templates/concept
 title: Troubleshooting
 ---
 
+{{% capture overview %}}
+
 Sometimes things go wrong. This guide is aimed at making them right. It has
 two sections:
 
@@ -14,6 +17,12 @@ two sections:
 You should also check the known issues for the [release](https://github.com/kubernetes/kubernetes/releases)
 you're using.
 
+{{% /capture %}}
+
+{{< toc >}}
+
+{{% capture body %}}
+
 ## Getting help
 
 If your problem isn't answered by any of the guides above, there are variety of
@@ -93,3 +102,5 @@ problem, such as:
 * Kubernetes version: `kubectl version`
 * Cloud provider, OS distro, network configuration, and Docker version
 * Steps to reproduce the problem
+
+{{% /capture %}}