M Gemfile → Gemfile

@@ -10,4 +10,4 @@ gem "therubyracer"
 gem "coderay"
 gem "glyph"
 gem "RedCloth"
-gem "redcarpet"
+gem "rdiscount"

M Rules → Rules

@@ -65,7 +65,7 @@ when 'textile' then
 				filter :redcloth
 				layout 'default'
 			when 'md','markdown' then
-				filter :redcarpet
+				filter :rdiscount
 				layout 'default'
 			when 'bbcode' then
 				filter :bbcode