In vim, how do I highlight TODO: and FIXME:?

In vim, how do I highlight TODO: and FIXME:?

$ ~/.vimrc

syntax on

augroup vimrc_jun_todo
        au!
        au Syntax * syn match JunTodo /\v<(FIXME|NOTE|TODO|OPTIMIZE):/ containedin=.*Comment,vimCommentTitle
augroup END
hi def link JunTodo Todo

Reference:

https://stackoverflow.com/questions/4097259/in-vim-how-do-i-highlight-todo-and-fixme