Sixth Korean l10n work for release 1.18

- Update outdated files in dev-1.18-ko.6 partly (#21714)
- Translate StorageClass to Korean word (#21805)
- Translate StatefulSet to Korean word in pods.md (#21794)
- Translate tasks/run-application/delete-stateful-set/ in Korean (#21686)
- Translate tasks/administer-cluster/change-default-storage-class in Korean (#21801)
- update outdated docs (#21940)
- Modify spacing term StatefulSet in Korean (#21871)
- Translate /tasks/administer-cluster/coredns in Korean (#21876)
- Fix typo in k8s.io/ko/docs/contribute/new-content/new-content/ (#21975)
- Translation error correction in /concepts/containers/runtime-class.md (#21868)
- Translate tasks/tls/certificate-rotation/ in Korean (#21838)
- Translate /tasks/configure-pod-container/static-pod in Korean (#21798)
- Update to Outdated files in the dev-1.18-ko.6 branch - (1/4) (#21911)
- Fix English bugs in Korean documentation (#21994)
- Update outdated dev-1.18-ko.6 partly (#22067)

Co-authored-by: Jerry Park <jaehwa@gmail.com>
Co-authored-by: PyungHo Yoon <learder@gmail.com>
Co-authored-by: Yuk, Yongsu <ysyukr@gmail.com>
Co-authored-by: Jerry Park <jaehwa@gmail.com>
Co-authored-by: Seokho Son <shsongist@gmail.com>
Co-authored-by: Jordy Ruiter <jordy.ruiter@gmail.com>
Co-authored-by: bluefriday <bluefriday86@gmail.com>
Co-authored-by: Dajin Gwon <d.gweon@samsung.com>
Co-authored-by: Hyungseok Lee <hs0426.lee@samsung.com>
Co-authored-by: Jihoon Seo <jihoon.seo@etri.re.kr>
Co-authored-by: coolguyhong <podolsmith@naver.com>
Co-authored-by: jmyung <jesang.myung@gmail.com>
Co-authored-by: June Yi <june.yi@samsung.com>

content/ko/docs/concepts/services-networking/connect-applications-service.md

@@ -73,7 +73,7 @@ service/my-nginx exposed
 
 이 사양은 `run: my-nginx` 레이블이 부착된 모든 파드에 TCP 포트 80을
 대상으로 하는 서비스를 만들고 추상화된 서비스 포트에 노출시킨다
-(`targetPort` 는 컨테이너가 트래픽을 수신하는 포트, `port` 는 
+(`targetPort` 는 컨테이너가 트래픽을 수신하는 포트, `port` 는
 추상화된 서비스 포트로 다른 파드들이 서비스에 접속하기위해 사용하는
 모든 포트일 수 있다).
 [서비스](/docs/reference/generated/kubernetes-api/{{< param "version" >}}/#service-v1-core)의
@@ -390,8 +390,8 @@ kubectl edit svc my-nginx
 kubectl get svc my-nginx
 ```
 ```
-NAME       TYPE        CLUSTER-IP     EXTERNAL-IP        PORT(S)               AGE
-my-nginx   ClusterIP   10.0.162.149   162.222.184.144    80/TCP,81/TCP,82/TCP  21s
+NAME       TYPE           CLUSTER-IP     EXTERNAL-IP        PORT(S)               AGE
+my-nginx   LoadBalancer   10.0.162.149   xx.xxx.xxx.xxx     8080:30163/TCP        21s
 ```
 ```
 curl https://<EXTERNAL-IP> -k