Fix test after upgrading marked to 0.6.0

test/test-markdown-element-attributes.html

@@ -66,8 +66,7 @@
 
 						Test
 
-						![Example Picture](examples/assets/image2.png)
-						<!-- {_class="reveal stretch"} -->
+						![Example Picture](examples/assets/image2.png) <!-- {_class="reveal stretch"} -->
 
 					</script>
 				</section>