From 13c836661996b9c03bbcaf6b56a49d3925ffe925 Mon Sep 17 00:00:00 2001
From: Isaac Delton <1321092024@qq.com>
Date: Sat, 24 Mar 2018 23:22:54 +0800
Subject: [PATCH 1/1] Add support for strike through which is supported by GFM
 but not in standard markdown.

---
 syntax/markdown.vim | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/syntax/markdown.vim b/syntax/markdown.vim
index 008a6d8..aad7dc4 100644
--- a/syntax/markdown.vim
+++ b/syntax/markdown.vim
@@ -145,6 +145,12 @@ if get(g:, 'vim_markdown_math', 0)
   syn region mkdMath start="\\\@<!\$\$" end="\$\$" skip="\\\$" contains=@tex keepend
 endif
 
+" Strike through
+if get(g:, 'vim_markdown_strikethrough', 0)
+    syn region mkdStrike matchgroup=mkdStrike start="\%(\~\~\)"    end="\%(\~\~\)"
+    HtmlHiLink mkdStrike        htmlStrike
+endif
+
 syn cluster mkdNonListItem contains=@htmlTop,htmlItalic,htmlBold,htmlBoldItalic,mkdFootnotes,mkdInlineURL,mkdLink,mkdLinkDef,mkdLineBreak,mkdBlockquote,mkdCode,mkdRule,htmlH1,htmlH2,htmlH3,htmlH4,htmlH5,htmlH6,mkdMath
 
 "highlighting for Markdown groups
-- 
2.39.5