Merge pull request #20424 from Fale/concept-overview-components

control plane should not be capitalized

Author: k8s-ci-robot

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

@@ -25,10 +25,10 @@ Here's the diagram of a Kubernetes cluster with all the components tied together
 {{% capture body %}}
 ## Control Plane Components
 
-The Control Plane's components make global decisions about the cluster (for example, scheduling), as well as detecting and responding to cluster events (for example, starting up a new {{< glossary_tooltip text="pod" term_id="pod">}} when a deployment's `replicas` field is unsatisfied).
+The control plane's components make global decisions about the cluster (for example, scheduling), as well as detecting and responding to cluster events (for example, starting up a new {{< glossary_tooltip text="pod" term_id="pod">}} when a deployment's `replicas` field is unsatisfied).
 
-Control Plane components can be run on any machine in the cluster. However,
-for simplicity, set up scripts typically start all Control Plane components on
+Control plane components can be run on any machine in the cluster. However,
+for simplicity, set up scripts typically start all control plane components on
 the same machine, and do not run user containers on this machine. See
 [Building High-Availability Clusters](/docs/admin/high-availability/) for an example multi-master-VM setup.