First Korean l10n work for release-1.15 (#15356)

* Translate concepts/workloads/controllers/replicationcontroller in Korean (#15044)
* ko: Update outdated 1.14-ko.4 branch (#15099)
* Translate tasks/access-application-cluster/configure-access-multiple-clusters in Korean (#15121)
* Translate standardized glossary items in Tag Network into Korean (#15278)
* ko: Keep up with upstream - renamed files (#15030)

Co-Authored-By: Seokho <shsongist@gmail.com>
Co-Authored-By: lapee79 <lapee79@gmail.com>
Co-Authored-By: Yoon <learder@gmail.com>
Co-Authored-By: June Yi <june.yi@samsung.com>

content/ko/docs/setup/release/_index.md

@@ -1,5 +1,5 @@
 ---
-title: "쿠버네티스 다운로드"
-weight: 20
+title: "릴리스 노트와 버전 차이 지원(skew)"
+weight: 10
 ---