btrc-hub/frontend/src/locales/ja/help.json

{
  "title": "ヘルプ", "search": "ヘルプ検索", "history": "ヘルプ改定履歴",
  "effectiveSince": "有効開始年月日", "empty": "該当する記事がありません．",
  "diffTitle": "ヘルプ 差分: {{title}}", "articleTitle": "{{title}} ヘルプ"
}