Meta: link Korean translation

Author: JinDX

index.bs

@@ -7,6 +7,7 @@ Text Macro: LATESTRD 2023-09
 Abstract: File System defines infrastructure for file systems as well as their API.
 Translation: ja https://triple-underscore.github.io/fs-ja.html
 Translation: zh-Hans https://htmlspecs.com/fs/
+Translation: ko https://ko.htmlspecs.com/fs/
 Indent: 2
 Markup Shorthands: css no, markdown yes
 </pre>