update comments

Author: Jefftree

content/en/docs/concepts/overview/kubernetes-api.md

@@ -71,9 +71,9 @@ separate endpoint for each group version.
 
 ### Aggregated discovery
 
-{{< feature-state state="stable" for_k8s_version="v1.27" >}}
+{{< feature-state feature_gate_name="AggregatedDiscoveryEndpoint" >}}
 
-Kubernetes offers stable support for aggregated discovery, publishing
+Kubernetes offers stable support for _aggregated discovery_, publishing
 all resources supported by a cluster through two endpoints (`/api` and
 `/apis`). Requesting this
 endpoint drastically reduces the number of requests sent to fetch the
@@ -282,30 +282,6 @@ packages that define the API objects.
 Kubernetes stores the serialized state of objects by writing them into
 {{< glossary_tooltip term_id="etcd" >}}.
 
-## API Discovery
-
-A list of all group versions supported by a cluster is published at
-the `/api` and `/apis` endpoints. Each group version also advertises
-the list of resources supported via `/apis/<group>/<version>` (for
-example: `/apis/rbac.authorization.k8s.io/v1alpha1`). These endpoints
-are used by kubectl to fetch the list of resources supported by a
-cluster.
-
-### Aggregated Discovery
-
-{{< feature-state feature_gate_name="AggregatedDiscoveryEndpoint" >}}
-
-Kubernetes offers stable support for aggregated discovery, publishing
-all resources supported by a cluster through two endpoints (`/api` and
-`/apis`) compared to one for every group version. Requesting this
-endpoint drastically reduces the number of requests sent to fetch the
-discovery for the average Kubernetes cluster. This may be accessed by
-requesting the respective endpoints with an Accept header indicating
-the aggregated discovery resource:
-`Accept: application/json;v=v2;g=apidiscovery.k8s.io;as=APIGroupDiscoveryList`.
-
-The endpoint also supports ETag and protobuf encoding.
-
 ## API groups and versioning
 
 To make it easier to eliminate fields or restructure resource representations,