단축키: Ctrl/Cmd+B(굵게), Ctrl/Cmd+I(기울임), Ctrl/Cmd+K(링크), Ctrl/Cmd+Shift+7/8(번호/글머리표), Ctrl/Cmd+Shift+9(인용), Ctrl/Cmd+Shift+C(코드블록), Ctrl/Cmd+Enter(등록), Shift+P(미리보기)