Add missing closing picture tag

scipost_django/scipost/templates/scipost/_hx_sponsors.html

@@ -17,6 +17,7 @@
 	    {% endfor %}
 	    <img class="rounded" style="max-height: 8rem; max-width: 16rem;"
 		 src="{{ sponsor.logo.url }}" alt="{{ sponsor.name }} logo">
+	  </picture>
 	</li>
       {% elif sponsor.logo %}
 	<li class="p-2">