First Korean l10n Work For Release 1.18

* Update to Outdated files in the dev-1.18-ko.1 branch (#19886)
* Translate reference/glossary/service-catalog.md in Korean (#20055)
* Translate storage/dynamic-provisioning.md in Korean (#19952)
* Translate extend-kubernetes/extend-cluster.md in Korean (#20031)
* Translate storage/persistent-volumes.md in Korean (#19906)
* Translate partners/_index.html in Korean (#19967)
* Translate extend-kubernetes/operator.md in Korean (#20037)
* Translate assign-pods-nodes to Korean (#20035)
* Translate scheduling/kube-scheduler.md in Korean (#19879)
* Translate concepts/containers/overview in Korean (#19885)
* Translate policy/pod-security-policy.md in Korean (#19922)
* Translate policy/limit-range.md in Korean (#19912)
* Translate policy/resource-quotas.md in Korean (#19931)
* Translate extend-kubernetes/api-extension/custom-resources.md in Korean (#20093)
* Translate reference/glossary/managed-service.md in Korean (#20150)

Co-authored-by: Jerry Park <jaehwa@gmail.com>
Co-authored-by: heechang lee <bluefriday86@gmail.com>
Co-authored-by: Yuk, Yongsu <ysyukr@gmail.com>
Co-authored-by: Seokho Son <shsongist@gmail.com>
Co-authored-by: coolguyhong <podolsmith@naver.com>
Co-authored-by: santachopa <santachopa@naver.com>
Co-authored-by: Jesang Myung <jesang.myung@gmail.com>
Co-authored-by: June Yi <june.yi@samsung.com>

content/ko/docs/home/_index.md

@@ -3,7 +3,7 @@ title: 쿠버네티스 문서
 noedit: true
 cid: docsHome
 layout: docsportal_home
-class: gridPage
+class: gridPage gridPageHome
 linkTitle: "홈"
 main_menu: true
 weight: 10
@@ -40,7 +40,7 @@ cards:
   button: "태스크 보기"
   button_path: "/ko/docs/tasks"
 - name: training
-  title: 교육"
+  title: "교육"
   description: "공인 쿠버네티스 인증을 획득하고 클라우드 네이티브 프로젝트를 성공적으로 수행하세요!"
   button: "교육 보기"
   button_path: "/training"