Fourth Korean l10n work for release 1.18

- Translate docs/reference/issues-security/_index.md into Korean (#21145)
- Translate tasks/administer-cluster/kubeadm/adding-windows-nodes.md into Korean (#21003)
- Translate manage-resources/memory-default-namespace.md into Korean (#21089)
- Translate tasks/configure-pod-container/pull-image-private-registry in Korean (#21036)
- Translate contribute/advanced.md into Korean (#21002)
- Update to Outdated files in the dev-1.18-ko.4 branch. (#21102)
- Translate manage-resources/cpu-constraint-namespace.md into Korean (#21048)
- Translate manage-resources/memory-constraint-namespace.md into Korean (#21091)
- Translate setup/release/notes.md in Korean (#21158)
- Translate manage-resources/quota-pod-namespace.md into Korean (#21087)
- Translate tasks/administer-cluster/kubeadm/upgrading-windows-nodes.md into Korean (#20999)
- Translate tasks/administer-cluster/kubeadm/kubeadm-certs.md into Korean (#21000)
- Translate manage-resources/quota-memory-cpu-namespace.md into Korean (#21088)
- Translate manage-resources/cpu-default-namespace.md into Korean (#21090)
- Translate contribute/suggesting-improvements.md into Korean (#21001)
- Translate quality-service-pod in Korean (#21081)

Co-authored-by: Jerry Park <jaehwa@gmail.com>
Co-authored-by: Jesang Myung <jesang.myung@gmail.com>
Co-authored-by: DongMoon Kim <dmoons.kim@gmail.com>
Co-authored-by: Jesang Myung <jesang.myung@gmail.com>
Co-authored-by: Yuk, Yongsu <ysyukr@gmail.com>
Co-authored-by: bluefriday <bluefriday86@gmail.com>

content/ko/docs/concepts/workloads/pods/disruptions.md

@@ -83,6 +83,8 @@ weight: 60
 
 ## Disruption Budgets의 작동 방식
 
+{{< feature-state for_k8s_version="v1.5" state="beta" >}}
+
 애플리케이션 소유자는 각 애플리케이션에 대해 `PodDisruptionBudget` 오브젝트(PDB)를 만들 수 있다.
 PDB는 자발적 중단으로 일시에 중지되는 복제된 애플리케이션 파드의 수를 제한한다.
 예를 들어 정족수 기반의 애플리케이션이 
@@ -192,7 +194,7 @@ drain 커멘드는 `pod-b`를 축출하는데 성공했다.
 
 |    node-1 *drained*  |       node-2        |       node-3       | *no node*          |
 |:--------------------:|:-------------------:|:------------------:|:------------------:|
-|                      | pod-b *available*   | pod-c *available*  | pod-e *pending*    |
+|                      | pod-b *terminating* | pod-c *available*  | pod-e *pending*    |
 |                      | pod-d *available*   | pod-y              |                    |
 
 이 시점에서 클러스터 관리자는