Fix markdown and other highlighting, #578

after/syntax/html/rdfa.vim

@@ -0,0 +1,15 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'html5') == -1
+
+" Vim syntax file
+" Language:     RDFa
+" Maintainer:   othree <othree@gmail.com>
+" URL:          http://github.com/othree/html5-syntax.vim
+" Last Change:  2012-06-08
+" License:      MIT
+" Changes:      update to Rec 07 June 2012
+
+" RDFa
+" http://www.w3.org/TR/rdfa-syntax/#s_syntax
+syn keyword htmlArg contained about content datatype href inlist prefix property rel resource rev src typeof vocab
+
+endif