We don't need it. Anything under @plugin is implicitly in the "header"
region unless explicitly marked otherwise (ie. with @footer or such).
""
" @plugin docvim Syntax highlighting for docvim comments
"
-" @header
-"
" *vim-docvim*
" # Intro
"
syntax match docvimAnnotation '@dedent' containedin=docvimBlock contained
syntax match docvimAnnotation '@footer' containedin=docvimBlock contained
syntax match docvimAnnotation '@function' containedin=docvimBlock contained
-syntax match docvimAnnotation '@header' containedin=docvimBlock contained
syntax match docvimAnnotation '@indent' containedin=docvimBlock contained
syntax match docvimAnnotation '@mapping' containedin=docvimBlock contained
syntax match docvimAnnotation '@option' containedin=docvimBlock contained