A slightly better doc comment and remove redundant filetype

Author: zetashift

dom/src/main/scala-2/org/scalajs/dom/ImageLoadingMode.scala.scala renamed to dom/src/main/scala-2/org/scalajs/dom/ImageLoadingMode.scala

@@ -3,7 +3,8 @@ package org.scalajs.dom
 import scala.scalajs.js
 
 /**
-  * Possible values for the loading type of an `HTMLImageElement`: https://html.spec.whatwg.org/multipage/embedded-content.html#dom-img-loading
+  * Possible values for an HTMLImageElement loading attribute
+  *  [[https://html.spec.whatwg.org/multipage/embedded-content.html#dom-img-loading]]
   */
 @js.native
 sealed trait ImageLoadingMode extends js.Any

dom/src/main/scala-3/org/scalajs/dom/ImageLoadingMode.scala

@@ -3,7 +3,8 @@ package org.scalajs.dom
 import scala.scalajs.js
 
 /**
-  * Possible values for the loading type of an `HTMLImageElement`: https://html.spec.whatwg.org/multipage/embedded-content.html#dom-img-loading
+  * Possible values for an HTMLImageElement loading attribute
+  *  [[https://html.spec.whatwg.org/multipage/embedded-content.html#dom-img-loading]]
   */
 opaque type ImageLoadingMode <: String = String