Fix incorrectly formatted URL. Will also fix this upstream in the Kub…

…ernetes repo. (#7488)

docs/imported/release/notes.md

@@ -351,7 +351,7 @@ Consider the following changes, limitations, and guidelines before you upgrade:
 ### **API Machinery**
 
 *   The admission API, which is used when the API server calls admission control webhooks, is moved from `admission.v1alpha1` to `admission.v1beta1`. You must **delete any existing webhooks before you upgrade** your cluster, and update them to use the latest API. This change is not backward compatible.
-*   The admission webhook configurations API, part of the admissionregistration API, is now at v1beta1. Delete any existing webhook configurations before you upgrade, and update your configuration files to use the latest API. For this and the previous change, see also [the documentation]([https://kubernetes.io/docs/admin/extensible-admission-controllers/#external-admission-webhooks](https://kubernetes.io/docs/admin/extensible-admission-controllers/#external-admission-webhooks)).
+*   The admission webhook configurations API, part of the admissionregistration API, is now at v1beta1. Delete any existing webhook configurations before you upgrade, and update your configuration files to use the latest API. For this and the previous change, see also [the documentation](https://kubernetes.io/docs/admin/extensible-admission-controllers/#external-admission-webhooks).
 *   A new `ValidatingAdmissionWebhook` is added (replacing `GenericAdmissionWebhook`) and is available in the generic API server. You must update your API server configuration file to pass the webhook to the `--admission-control` flag. ([#55988](https://github.com/kubernetes/kubernetes/pull/55988),[ @caesarxuchao](https://github.com/caesarxuchao))  ([#54513](https://github.com/kubernetes/kubernetes/pull/54513),[ @deads2k](https://github.com/deads2k))
 *   The deprecated options `--portal-net` and `--service-node-ports` for the API server are removed. ([#52547](https://github.com/kubernetes/kubernetes/pull/52547),[ @xiangpengzhao](https://github.com/xiangpengzhao))