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content/en/docs/concepts/extend-kubernetes/api-extension/custom-resources.md

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 reviewers:
 - enisoc
 - deads2k
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 *Custom resources* are extensions of the Kubernetes API. This page discusses when to add a custom
 resource to your Kubernetes cluster and when to use a standalone service. It describes the two
 methods for adding custom resources and how to choose between them.
 
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 ## Custom resources
 
 A *resource* is an endpoint in the [Kubernetes API](/docs/reference/using-api/api-overview/) that stores a collection of
@@ -246,12 +246,13 @@ When you add a custom resource, you can access it using:
 - A REST client that you write.
 - A client generated using [Kubernetes client generation tools](https://github.com/kubernetes/code-generator) (generating one is an advanced undertaking, but some projects may provide a client along with the CRD or AA).
 
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 * Learn how to [Extend the Kubernetes API with the aggregation layer](/docs/concepts/extend-kubernetes/api-extension/apiserver-aggregation/).
 
 * Learn how to [Extend the Kubernetes API with CustomResourceDefinition](/docs/tasks/access-kubernetes-api/custom-resources/custom-resource-definitions/).
 
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