Seventh Korean l10n work for release 1.18

- Translate reference/command-line-tools-reference/feature-gates.md int… (#22240)
- Fix issue of broken links to translated docs (#22105)
- Fix issue of document link in some ko documents (#22379)
- Translate tasks/administer-cluster/access-cluster-services.md into Ko… (#21776)
- Fix issue with 'Linux' and 'Windows' notation in Korean docs (#22362)
- Fix issue of broken links to translated docs #2 (#22270)
- Fix issue with k8s.io/ko/docs/concepts/overview/kubernetes-api.md (#22261)
- Fix issue with k8s.io/ko/docs/concepts/overview/working-with-objects/ (#22263)
- Fix incorrect notation of 'directory' into Korean (#22155)
- Fix issue with k8s.io/ko/docs/concepts/overview/components.md (#22232)
- Update outdated files in dev-1.18-ko.7 (#22128)
- Modify spacing term ReplicaSet in Korean (#22148)
- Translate tasks/administer-cluster/extended-resource-node.md into Korean (#21849)
- Translate tasks/administer-cluster/access-cluster-api.md into Korean (#21730)

Co-authored-by: Jerry Park <jaehwa@gmail.com>
Co-authored-by: woopyoung <ywp041@gmail.com>
Co-authored-by: coolguyhong <podolsmith@naver.com>
Co-authored-by: PyungHo Yoon <learder@gmail.com>
Co-authored-by: Seokho Son <shsongist@gmail.com>
Co-authored-by: jmyung <jesang.myung@gmail.com>
Co-authored-by: Ian Y. Choi <ianyrchoi@gmail.com>

content/ko/docs/concepts/services-networking/endpoint-slices.md

@@ -41,7 +41,7 @@ term_id="selector" >}} 가 지정되면 EndpointSlice
 서비스 셀렉터와 매치되는 모든 파드들을 포함하고 참조한다. 엔드포인트슬라이스는
 고유한 서비스와 포트 조합을 통해 네트워크 엔드포인트를 그룹화 한다.
 EndpointSlice 오브젝트의 이름은 유효한
-[DNS 서브도메인 이름](/ko/docs/concepts/overview/working-with-objects/names/#dns-서브도메인-이름들)이어야 한다.
+[DNS 서브도메인 이름](/ko/docs/concepts/overview/working-with-objects/names/#dns-서브도메인-이름)이어야 한다.
 
 예를 들어, 여기에 `example` 쿠버네티스 서비스를 위한 EndpointSlice
 리소스 샘플이 있다.
@@ -180,4 +180,3 @@ text="kube-controller-manager" term_id="kube-controller-manager" >}} 플래그
 
 * [엔드포인트슬라이스 활성화하기](/docs/tasks/administer-cluster/enabling-endpointslices)
 * [애플리케이션을 서비스와 함께 연결하기](/ko/docs/concepts/services-networking/connect-applications-service/)를 읽어보기
-