common/r*: add Korean translation (#14644)

* common/r*: add Korean translation

* Update rtv.md

* Update pages.ko/common/rtv.md

Co-authored-by: Sebastiaan Speck <12570668+sebastiaanspeck@users.noreply.github.com>

---------

Co-authored-by: Sebastiaan Speck <12570668+sebastiaanspeck@users.noreply.github.com>

pages.ko/common/runsvchdir.md

@@ -0,0 +1,8 @@
+# runsvchdir
+
+> 기본적으로 `runsvdir`이 사용하는 디렉토리를 변경합니다.
+> 더 많은 정보: <https://manned.org/runsvchdir.8>.
+
+- `runsvdir` 디렉토리 변경:
+
+`sudo runsvchdir {{경로/대상/폴더}}`