Fix markdown code blocks

             lexer = pygments.lexers.get_lexer_by_name(language)
             lexer.add_filter("codetagify")
             formatter = pygments.formatters.HtmlFormatter()
-            code = pygments.highlight(text, lexer, formatter)
+            code = pygments.highlight(code, lexer, formatter)
             html = lxml.html.fromstring(code)
         else:
             html = E.PRE(text.strip())