First Korean I10n work for release-1.14 (#13730)

* First Korean I10n work for release-1.14

- ko: Fix nav-menu sync in tutorials/statefulset #13374 (#13474)
- ko: add outdated files in dev-1.14-ko.1 branch (#13473)
- Translate title of concepts/../image.md Ko (#13507)
- ko: add translation tutorial/stateful-application/cassandra #12450 (#13515)
- Translate reference/kubectl/cheatsheet in Korean (#13549)
- Translate tasks/access-application-cluster/access-cluster in Korean (#13565)
- ko: add tutorials/stateful-application/mysql-wordpress-persistent-vol… (#13516)
- Issue 12838 object management kubectl imperative config (#13657)
- Translate standardized glossary Tag Fandamental in Korean (#13552)

Co-authored-by:    Kim Young Dae <38598117+zer0big@users.noreply.github.com>

Co-authored-by:    Yoon <learder@gmail.com>

Co-authored-by:    lapee79 <lapee79@gmail.com>

Co-authored-by:    Jesang Myung <jesang.myung@gmail.com>

Co-authored-by:    Seokho <shsongist@gmail.com>

Co-authored-by:    Claudia J.Kang <claudiajkang@gmail.com>

Co-authored-by:    June Yi <june.yi@samsung.com>

* Fix conflict : pick-right-solution

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

@@ -0,0 +1,18 @@
+---
+title: 셀렉터(Selector)
+id: selector
+date: 2018-04-12
+full_link: /docs/concepts/overview/working-with-objects/labels/
+short_description: >
+  사용자가 레이블에 따라서 리소스 리스트를 필터할 수 있게 한다.
+
+aka: 
+tags:
+- fundamental
+---
+ 사용자가 레이블에 따라서 리소스 리스트를 필터할 수 있게 한다.
+
+<!--more--> 
+
+셀렉터는 리소스 리스트를 질의할 때 리스트를 {{< glossary_tooltip text="레이블" term_id="label" >}}에 따라서 필터하기 위해서 적용된다.Selectors are applied when querying lists of resources to filter them by {{< glossary_tooltip text="Labels" term_id="label" >}}.
+