can it support insert a close mark?

[Freed-Wu]

just like

" dbmrq/vim-chalk {{{3 "

however, <plug>chalk will get

" dbmrq/vim-chalk {{{3

[dbmrq]

Thank you for opening these issues! I've got a lot on my plate right now, so it'll be a while until I can look into them, but I'll do it as soon as I can. Or if you want to give it a go a PR would also be more than welcome. :)