Change "help about markdown" icon
Change "help about markdown" icon

GitbookIO/editor-legacy,KINGSABRI/editor-legacy,KINGSABRI/editor-legacy,Futuring/editor-legacy,gdbooks/editor-legacy,KINGSABRI/editor-legacy,Futuring/editor-legacy,zhanghuiguoanlige/editor-legacy,GitbookIO/editor-legacy,zhanghuiguoanlige/editor-legacy,gdbooks/editor-legacy,GitbookIO/editor-legacy,gdbooks/editor-legacy,Futuring/editor-legacy,zhanghuiguoanlige/editor-legacy