Third Korean L10n Work For Release 1.17 (#18915)

* Changed some words in the IPv4/IPv6 dual-stack korean doc. (#18668)

* Update to Outdated files in dev-1.17-ko.3 branch. (#18580)

* Translate content/ko/docs/concepts/services-networking/service in Korean (#18195)

* Translate docs/tasks/access-application-cluster/port-forward-access-application-cluster.md in Korean (#18721)

* Translate controllers/garbage-collection.md in Korean. (#18595)

Co-Authored-by: Seokho Son <shsongist@gmail.com>
Co-Authored-by: Lawrence Kay <lkay9495@hotmail.com>
Co-Authored-by: Jesang Myung <jesang.myung@gmail.com>
Co-Authored-by: Claudia J.Kang <claudiajkang@gmail.com>
Co-Authored-by: Yuk, Yongsu <ysyukr@gmail.com>
Co-Authored-By: June Yi <june.yi@samsung.com>

Co-authored-by: Yuk, Yongsu <ysyukr@gmail.com>
Co-authored-by: Seokho Son <shsongist@gmail.com>
Co-authored-by: Lawrence Kay <me@lkaybob.pe.kr>
Co-authored-by: Jesang Myung <jesang.myung@gmail.com>
Co-authored-by: June Yi <june.yi@samsung.com>

content/ko/docs/reference/glossary/customresourcedefinition.md

@@ -2,7 +2,7 @@
 title: 커스텀 리소스 데피니션(CustomResourceDefinition)
 id: CustomResourceDefinition
 date: 2018-04-12
-full_link: docs/tasks/access-kubernetes-api/extend-api-custom-resource-definitions/
+full_link: /docs/tasks/access-kubernetes-api/extend-api-custom-resource-definitions/
 short_description: >
   사용자 정의 서버를 완전히 새로 구축할 필요가 없도록 쿠버네티스 API 서버에 추가할 리소스를 정의하는 사용자 정의 코드.