Introduce markdown renderer for templates

Change-Id: Ia0166b5c7f3b80f70902c97653e517968d39dcf5
diff --git a/Makefile.PL b/Makefile.PL
index bc5040c..30270a6 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -39,6 +39,9 @@
     # Required for older perl bundles
     'List::Util' => 1.70,
 
+    # Required for Markdown template support
+    'Text::MultiMarkdown' => 1.005,
+
     # Required for bundled plugins
     'Mojolicious::Plugin::Piwik' => 2.00
   },