Remove redundant hanja notation (#9554)

Co-authored-by: openingnow <>

README.md

@@ -101,7 +101,7 @@ This project lists books and other resources grouped by genres:
 + [Indonesian / Bahasa Indonesia](books/free-programming-books-id.md)
 + [Italian / italiano](books/free-programming-books-it.md)
 + [Japanese / 日本語](books/free-programming-books-ja.md)
-+ [Korean / 한국어 [韓國語]](books/free-programming-books-ko.md)
++ [Korean / 한국어](books/free-programming-books-ko.md)
 + [Latvian / Latviešu](books/free-programming-books-lv.md)
 + [Norwegian / Norsk](books/free-programming-books-no.md)
 + [Persian / Farsi (Iran) / فارسى](books/free-programming-books-fa_IR.md)
@@ -143,7 +143,7 @@ This project lists books and other resources grouped by genres:
 + [Japanese / 日本語](courses/free-courses-ja.md)
 + [Kazakh / қазақша](courses/free-courses-kk.md)
 + [Khmer / ភាសាខ្មែរ](courses/free-courses-km.md)
-+ [Korean / 한국어 [韓國語]](courses/free-courses-ko.md)
++ [Korean / 한국어](courses/free-courses-ko.md)
 + [Malayalam / മലയാളം](courses/free-courses-ml.md)
 + [Nepali / नेपाली](courses/free-courses-ne.md)
 + [Norwegian / Norsk](courses/free-courses-no.md)

docs/README.md

@@ -66,7 +66,7 @@ Volunteers have translated many of our Contributing, How-to, and Code of Conduct
 - Kazakh / қазақша
 - Khmer / Cambodian / ខ្មែរ
   - [How-to](HOWTO-km.md)
-- Korean / 한국어 [韓國語]
+- Korean / 한국어
   - [행동강령](CODE_OF_CONDUCT-ko.md)
   - [Contributing](CONTRIBUTING-ko.md)
   - [How-to](HOWTO-ko.md)