Callouts and other small formatting (#5022)

* Removing Extra Spaces

Issue 4602 | Configure Pods and Containers

* Update security-context.md

Adding callouts

* Update security-context.md

* Adding callout and fixing code block

* Removing extra space

* Adding callout

* Addling callouts

* Update assign-cpu-resource.md

* Adding callout

* Update configure-persistent-volume-storage.md

* Update configure-service-account.md

* Update quality-service-pod.md

* Update security-context.md

docs/tasks/configure-pod-container/assign-cpu-resource.md

@@ -119,10 +119,11 @@ Recall that by setting `-cpu "2"`, you configured the Container to attempt to us
 But the Container is only being allowed to use about 1 cpu. The Container's CPU use is being
 throttled, because the Container is attempting to use more CPU resources than its limit.
 
-Note: There's another possible explanation for the CPU throttling. The Node might not have
+**Note:** There's another possible explanation for the CPU throttling. The Node might not have
 enough CPU resources available. Recall that the prerequisites for this exercise require that each of
 your Nodes has at least 1 cpu. If your Container is running on a Node that has only 1 cpu, the Container
 cannot use more than 1 cpu regardless of the CPU limit specified for the Container.
+{: .note}
 
 ## CPU units