Add and enable markdown bundle

app/SculpinKernel.php

@@ -2,6 +2,7 @@
 
 use App\Schedule\SculpinScheduleBundle;
 use App\Speakers\SculpinSpeakersBundle;
+use Opdavies\Sculpin\Bundle\TwigMarkdownBundle\SculpinTwigMarkdownBundle;
 use Sculpin\Bundle\SculpinBundle\HttpKernel\AbstractKernel;
 
 class SculpinKernel extends AbstractKernel
@@ -11,6 +12,7 @@ class SculpinKernel extends AbstractKernel
         return [
             SculpinScheduleBundle::class,
             SculpinSpeakersBundle::class,
+            SculpinTwigMarkdownBundle::class,
         ];
     }
-}
+}