chore: add ko to sounds.json

Author: pfeerick

.gitignore

@@ -8,3 +8,6 @@ release/
 
 # MacOS
 .DS_Store
+
+# Windows
+.Zone.Identifier

sounds.json

@@ -83,6 +83,12 @@
         "description": "Japanese Female Voice (ja-JP-NanamiNeural)",
         "directory": "jp"
     },
+    {
+        "language": "ko-KR",
+        "name": "Korean Female",
+        "description": "Korean Female Voice (Google Cloud Text-to-Speech)",
+        "directory": "ko"
+    },
     {
         "language": "pt-BR",
         "name": "Brazilian Portuguese Female",