Update runtime files
diff --git a/runtime/syntax/zsh.vim b/runtime/syntax/zsh.vim
index e16e74e..b4efcdc 100644
--- a/runtime/syntax/zsh.vim
+++ b/runtime/syntax/zsh.vim
@@ -2,7 +2,7 @@
" Language: Zsh shell script
" Maintainer: Christian Brabandt <cb@256bit.org>
" Previous Maintainer: Nikolai Weibull <now@bitwi.se>
-" Latest Revision: 2017-07-11
+" Latest Revision: 2017-11-22
" License: Vim (see :h license)
" Repository: https://github.com/chrisbra/vim-zsh
@@ -324,9 +324,9 @@
\ \%(\%(\<no_\?\)\?vi\>\)\|
\ \%(\%(\<no_\?\)\?warncreateglobal\>\)\|\%(\%(no_\?\)\?warn_create_global\>\)\|
\ \%(\%(\<no_\?\)\?xtrace\>\)\|
- \ \%(\%(\<no_\?\)\?zle\>\)/ nextgroup=zshOption skipwhite contained
+ \ \%(\%(\<no_\?\)\?zle\>\)/ nextgroup=zshOption,zshComment skipwhite contained
-syn keyword zshTypes float integer local typeset declare private
+syn keyword zshTypes float integer local typeset declare private readonly
" XXX: this may be too much
" syn match zshSwitches '\s\zs--\=[a-zA-Z0-9-]\+'