404: use pandoc-style code blocks

diff --git a/404.markdown b/404.markdown
index 7680809..14613dd 100644 (file)
--- a/404.markdown
+++ b/404.markdown
@@ -4,4 +4,6 @@ author: Lucian Mogoșanu
 date: July 20, 2013
 ---
 
-`*** Exception: TarPit.undefined`
+~~~~ {.haskell}
+*** Exception: TarPit.undefined
+~~~~