Clarifying number of examples of controllers

Author: hasanrashid

content/en/docs/concepts/overview/components.md

@@ -48,14 +48,16 @@ for an example control plane setup that runs across multiple machines.
 
 {{< glossary_definition term_id="kube-controller-manager" length="all" >}}
 
-Some types of these controllers are:
+There are many different types of controllers. Some examples of them are:
 
   * Node controller: Responsible for noticing and responding when nodes go down.
   * Job controller: Watches for Job objects that represent one-off tasks, then creates
     Pods to run those tasks to completion.
   * EndpointSlice controller: Populates EndpointSlice objects (to provide a link between Services and Pods).
   * ServiceAccount controller: Create default ServiceAccounts for new namespaces.
 
+The above is not an exhaustive list
+
 ### cloud-controller-manager
 
 {{< glossary_definition term_id="cloud-controller-manager" length="short" >}}
@@ -138,4 +140,4 @@ Learn more about the following:
    * Etcd's official [documentation](https://etcd.io/docs/).
    * Several [container runtimes](/docs/setup/production-environment/container-runtimes/) in Kubernetes.
    * Integrating with cloud providers using [cloud-controller-manager](/docs/concepts/architecture/cloud-controller/).
-   * [kubectl](/docs/reference/generated/kubectl/kubectl-commands) commands.
+   * [kubectl](/docs/reference/generated/kubectl/kubectl-commands) commands.