* add feature_stenography.md translation * update based on comment * Update docs/ja/feature_stenography.md Co-authored-by: shela <shelaf@users.noreply.github.com> * Update docs/ja/feature_stenography.md ご指摘ありがとうございます。 「速記プロトコル」で更新しました。 Co-authored-by: s-show <s1shimz@gmail.com> Co-authored-by: shela <shelaf@users.noreply.github.com> Co-authored-by: s-show <s1shimz@gmail.com>