Fix small typedoc comment

src/Loading/sceneLoader.ts

@@ -613,7 +613,7 @@ export class SceneLoader {
      * @param rootUrl a string that defines the root url for the scene and resources or the concatenation of rootURL and filename (e.g. http://example.com/test.glb)
      * @param sceneFilename a string that defines the name of the scene file or starts with "data:" following by the stringified version of the scene or a File object (default: empty string)
      * @param scene the instance of BABYLON.Scene to append to
-     * @param onSuccess a callback with a list of imported meshes, particleSystems, and skeletons when import succeeds
+     * @param onSuccess a callback with a list of imported meshes, particleSystems, skeletons, and animationGroups when import succeeds
      * @param onProgress a callback with a progress event for each file being loaded
      * @param onError a callback with the scene, a message, and possibly an exception when import fails
      * @param pluginExtension the extension used to determine the plugin