Allow strikethrough with two tildes in markdown, fixes #929

lord · lord · commit e70fdf11fc09 · 2018-01-19T14:13:11.000-06:00
diff --git a/config.rb b/config.rb
@@ -8,6 +8,7 @@
     smartypants: true,
     disable_indented_code_blocks: true,
     prettify: true,
+    strikethrough: true,
     tables: true,
     with_toc_data: true,
     no_intra_emphasis: true,
