Korean translation (#87)

README.md

@@ -30,6 +30,7 @@ if you need some help getting it setup.
 * [French/Français](https://www.sqlstyle.guide/fr/) by [IdrissaD](https://github.com/IdrissaD)
 * [Italian/Italiano](https://www.sqlstyle.guide/it/) by [robertopauletto](https://github.com/robertopauletto)
 * [Japanese/日本語](https://www.sqlstyle.guide/ja/) by [nkurigit](https://github.com/nkurigit)
+* [Korean/한국어](https://www.sqlstyle.guide/ko/) by [Dokyeongyun](https://github.com/Dokyeongyun)
 * [Polish/Polski](https://www.sqlstyle.guide/pl/) by [andre-wojtowicz](https://github.com/andre-wojtowicz)
 * [Portuguese (Brazil)/Português (BR)](https://www.sqlstyle.guide/pt-br/) by [pmarcus93](https://github.com/pmarcus93)
 * [Russian/Русский](https://www.sqlstyle.guide/ru/) by [denpatin](https://github.com/denpatin)

_config.yml

@@ -38,6 +38,9 @@ langs:
     ja:
         ja: 日本語
         en: Japanese
+    ko:
+        ko: 한국어
+        en: Korean
     pl:
         pl: Polski
         en: Polish

ko/index.md

@@ -0,0 +1,13 @@
+---
+layout: default
+lang: ko
+lang_title: SQL 스타일 가이드
+contributors:
+    - user: Dokyeongyun
+      type: translator
+---
+
+* TOC
+{:toc}
+
+{% include sqlstyle.guide.ko.md %}