i18n: Update Korean translation ko.yaml (#894)

Author: OctopusET

i18n/ko.yaml

@@ -9,17 +9,25 @@
     one : "1 분"
     other: "{{ .Count }} 분"
 
+- id: words
+  translation:
+    one : "단어"
+    other: "{{ .Count }} 단어"
+
 - id: toc
   translation: "목차"
 
 - id: translations
   translation: "번역"
 
 - id: home
-  translation: "홈페이지"
+  translation: "홈"
+
+- id: edit_post
+  translation: "편집"
 
 - id: code_copy
   translation: "복사"
 
 - id: code_copied
-  translation: "복사완료!"
+  translation: "복사 완료!"