Eighth Korean l10n work for release 1.18

- Translate tasks/administer-cluster/declare-network-policy in Korean (#22526)
- Translate tasks/debug-application-cluster/debug-init-containers in Korean (#22608)
- Fix a missing markdown syntax to enable external link (#22661)
- Translate tasks/administer-cluster/change-pv-reclaim-policy in Korean (#22551)
- Update docs/contribute/participate/ for Korean (#22605)
- Update outdated files in dev-1.18-ko.8 (#22466)
- Translate tasks/administer-cluster/dns-custom-nameservers in Korean (#22524)

Co-authored-by: Daehyun Paik <paik@a30a.dev>
Co-authored-by: Jerry Park <jaehwa@gmail.com>
Co-authored-by: bluefriday <bluefriday86@gmail.com>
Co-authored-by: June Yi <june.yi@samsung.com>
Co-authored-by: Jesang Myung <jesang.myung@gmail.com>
Co-authored-by: Seokho Son <shsongist@gmail.com>

content/ko/docs/setup/production-environment/tools/kops.md

@@ -27,7 +27,7 @@ kops는 자동화된 프로비저닝 시스템인데,
 
 * 반드시 64-bit (AMD64 그리고 Intel 64)디바이스 아키텍쳐 위에서 `kops` 를 [설치](https://github.com/kubernetes/kops#installing) 한다.
 
-* [AWS 계정](https://docs.aws.amazon.com/polly/latest/dg/setting-up.html)이 있고 [IAM 키](https://docs.aws.amazon.com/general/latest/gr/aws-sec-cred-types.html#access-keys-and-secret-access-keys)를 생성하고 [구성](https://docs.aws.amazon.com/cli/latest/userguide/cli-chap-configure.html#cli-quick-configuration) 해야 한다.
+* [AWS 계정](https://docs.aws.amazon.com/polly/latest/dg/setting-up.html)이 있고 [IAM 키](https://docs.aws.amazon.com/general/latest/gr/aws-sec-cred-types.html#access-keys-and-secret-access-keys)를 생성하고 [구성](https://docs.aws.amazon.com/cli/latest/userguide/cli-chap-configure.html#cli-quick-configuration)해야 한다. IAM 사용자는 [적절한 권한](https://github.com/kubernetes/kops/blob/master/docs/getting_started/aws.md#setup-iam-user)이 필요하다.