Update AP Transformer, adds image description to fanout

app/Transformer/ActivityPub/Verb/CreateNote.php

@@ -54,7 +54,7 @@ class CreateNote extends Fractal\TransformerAbstract
 						'type'      => $media->activityVerb(),
 						'mediaType' => $media->mime,
 						'url'       => $media->url(),
-						'name'      => null,
+						'name'      => $media->caption,
 					];
 				})->toArray(),
 				'tag' 				=> $tags,