Fixed invalid value in itemtype field in gallery template

templates/gallery.html.twig

@@ -40,7 +40,7 @@
 					{% set item_desc = item.description %}
 					{% set thumbnail = item_image.cropZoom(thumb_w, thumb_h).attribute('itemprop','http://schema.org/image').html(item_title,item_title,'gallery_content-image') %}
 
-					<div class="gallery_container {{columns}}" itemprop="associatedMedia" itemscope itemtype="MediaObject">
+					<div class="gallery_container {{columns}}" itemprop="associatedMedia" itemscope itemtype="http://schema.org/MediaObject">
 						<h3 class="title">{{item_title}}</h3>
 						<div class="gallery_content">
 							<a href="{{item_image.url}}" class="glightbox" data-height="{{page.header.height}}" data-width="{{page.header.width}}" data-title="{{item_title}}" data-description="{{item_desc|raw}}" data-desc-position="{{item.descPosition}}" data-zoomable="{{page.header.zoomable}}" data-draggable="{{page.header.draggable}}" data-type="image">