Fixed Korean language code in translations

docs/setup/changing-the-language.md

@@ -58,7 +58,7 @@ The following languages are supported:
 - `it` – Italian
 - `ja` – Japanese
 - `ka` – Georgian
-- `kr` – Korean
+- `ko` – Korean
 - `lt` – Lithuanian
 - `lv` – Latvian
 - `mk` – Macedonian

material/partials/languages/ko.html

@@ -2,7 +2,7 @@
   This file was automatically generated - do not edit
 -#}
 {% macro t(key) %}{{ {
-  "language": "kr",
+  "language": "ko",
   "clipboard.copy": "클립보드로 복사",
   "clipboard.copied": "클립보드에 복사됨",
   "edit.link.title": "이 페이지를 편집",

src/partials/languages/ko.html

@@ -22,7 +22,7 @@
 
 <!-- Translations: Korean -->
 {% macro t(key) %}{{ {
-  "language": "kr",
+  "language": "ko",
   "clipboard.copy": "클립보드로 복사",
   "clipboard.copied": "클립보드에 복사됨",
   "edit.link.title": "이 페이지를 편집",