Seventh Korean l10n work for release 1.18

- Translate reference/command-line-tools-reference/feature-gates.md int… (#22240)
- Fix issue of broken links to translated docs (#22105)
- Fix issue of document link in some ko documents (#22379)
- Translate tasks/administer-cluster/access-cluster-services.md into Ko… (#21776)
- Fix issue with 'Linux' and 'Windows' notation in Korean docs (#22362)
- Fix issue of broken links to translated docs #2 (#22270)
- Fix issue with k8s.io/ko/docs/concepts/overview/kubernetes-api.md (#22261)
- Fix issue with k8s.io/ko/docs/concepts/overview/working-with-objects/ (#22263)
- Fix incorrect notation of 'directory' into Korean (#22155)
- Fix issue with k8s.io/ko/docs/concepts/overview/components.md (#22232)
- Update outdated files in dev-1.18-ko.7 (#22128)
- Modify spacing term ReplicaSet in Korean (#22148)
- Translate tasks/administer-cluster/extended-resource-node.md into Korean (#21849)
- Translate tasks/administer-cluster/access-cluster-api.md into Korean (#21730)

Co-authored-by: Jerry Park <jaehwa@gmail.com>
Co-authored-by: woopyoung <ywp041@gmail.com>
Co-authored-by: coolguyhong <podolsmith@naver.com>
Co-authored-by: PyungHo Yoon <learder@gmail.com>
Co-authored-by: Seokho Son <shsongist@gmail.com>
Co-authored-by: jmyung <jesang.myung@gmail.com>
Co-authored-by: Ian Y. Choi <ianyrchoi@gmail.com>

content/ko/docs/reference/glossary/volume.md

@@ -4,14 +4,14 @@ id: volume
 date: 2018-04-12
 full_link: /ko/docs/concepts/storage/volumes/
 short_description: >
-  데이터를 포함하고 있는 디렉토리이며, 파드의 컨테이너에서 접근 가능하다.
+  데이터를 포함하고 있는 디렉터리이며, 파드의 컨테이너에서 접근 가능하다.
 
 aka: 
 tags:
 - core-object
 - fundamental
 ---
- 데이터를 포함하고 있는 디렉토리이며, {{< glossary_tooltip text="파드" term_id="pod" >}}의 {{< glossary_tooltip text="컨테이너" term_id="container" >}}에서 접근 가능하다.
+ 데이터를 포함하고 있는 디렉터리이며, {{< glossary_tooltip text="파드" term_id="pod" >}}의 {{< glossary_tooltip text="컨테이너" term_id="container" >}}에서 접근 가능하다.
 
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