Fourth Korean l10n work for release-1.15 (#16063)

* ko: update translation in reference/glossary/* (#15776)
* Update outdated files partly in dev-1.15-ko.4 (#15856)
* ko: update translation in tasks/debug-application-cluster/resource-metrics-pipeline (#15798)
* ko: translate setup/production-environment/tools/control-plane-flags (#15820)
* ko: translate user-guide-windows-containers (#15730)
* ko: update translation in reference/glossary/* (#15761)
* ko: Update outdated files partly in dev-1.15-ko.4 (#15790)
* ko: fix corrupt date in glossary/static-pod (#15911)
* ko: translate user-guide-windows-nodes (#15759)
* Translate /docs/concepts/configuration/overview/ in Korean (#15803)
* ko: translate setup/production-environment/tools/ha-topology (#15819)
* ko: translate tasks/administer-cluster/network-policy-provider (#15846)
* Translate tasks/inject-data-application/define-command-argument-container in Korea (#15933)
* ko: translate concepts/configuration/organize-cluster-access-kubeconfig (#15871)
* Translate working-with-objects/common-labels.md in Korean (#15832)
* Translate concepts/workloads/pods/disruptions.md in Korean (#15926)
* Translate tasks/access-application-cluster/web-ui/dashboard in Korean (#15852)
* Translate concepts/overview/working-with-objects/labels.md in Korean (#15831)
* ko: translate guestbook-logs-metrics-with-elk (#15894)
* ko: translate tasks/administer-cluster/highly-available-master (#15928)

Co-Authored-By: Yoon <learder@gmail.com>
Co-Authored-By: Eden <longlg88@naver.com>
Co-Authored-By: Yuk, Yongsu <ysyukr@gmail.com>
Co-Authored-By: June Yi <june.yi@samsung.com>
Co-Authored-By: Seokho Son <shsongist@gmail.com>
Co-Authored-By: Lawrence Kay <lkay9495@hotmail.com>
Co-Authored-By: alice_k106 <alice_k106@naver.com>
Co-Authored-By: Cheolgu Kim <lapee79@gmail.com>

content/ko/_index.html

@@ -30,7 +30,7 @@ Google이 일주일에 수십억 개의 컨테이너들을 운영하게 해준
 {{% blocks/feature image="suitcase" %}}
 #### 어디서나 동작
 
-쿠버네티스는 오픈소스로서 온-프레미스, 하이브리드, 또는 퍼블릭 클라우드 인프라스트럭처를 활용하는데 자유를 제공하며, 워크로드를 사용자에게 관건이 되는 곳으로 손쉽게 이동시켜 줄 수 있습니다. 
+쿠버네티스는 오픈소스로서 온-프레미스, 하이브리드, 또는 퍼블릭 클라우드 인프라스트럭처를 활용하는데 자유를 제공하며, 워크로드를 사용자에게 관건이 되는 곳으로 손쉽게 이동시켜 줄 수 있습니다.
 
 {{% /blocks/feature %}}
 
@@ -44,12 +44,12 @@ Google이 일주일에 수십억 개의 컨테이너들을 운영하게 해준
         <br>
         <br>
         <br>
-        <a href="https://www.lfasiallc.com/events/kubecon-cloudnativecon-china-2019" button id="desktopKCButton">Attend KubeCon in Shanghai on June 24-26, 2019</a>
-        <br>
-        <br>
-        <br>
-        <br>
         <a href="https://events.linuxfoundation.org/events/kubecon-cloudnativecon-north-america-2019" button id="desktopKCButton">Attend KubeCon in San Diego on Nov. 18-21, 2019</a>
+        <br>
+        <br>
+        <br>
+        <br>
+        <a href="https://events.linuxfoundation.org/events/kubecon-cloudnativecon-europe-2020/" button id="desktopKCButton">Attend KubeCon in Amsterdam on Mar. 30-Apr. 2, 2020</a>
 </div>
 <div id="videoPlayer">
     <iframe data-url="https://www.youtube.com/embed/H06qrNmGqyE?autoplay=1" frameborder="0" allowfullscreen></iframe>