[css-font-loading] Bikeshed fix

Author: tabatkins

css-font-loading/Overview.bs

@@ -16,6 +16,10 @@ Link Defaults: css-fonts-3 (descriptor) src, dom-ls (interface) Event, typedarra
 Ignored Terms: EventHandler, InvalidModificationError, WorkerGlobalScope, CanvasProxy, Document, add(), src
 </pre>
 
+<pre class="link-defaults">
+spec:dom-ls; type:interface; text:EventTarget
+</pre>
+
 <h2 id="introduction">
 Introduction</h2>