Fix nits found

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@@ -8483,7 +8483,7 @@ o.myself = o;</pre>
     </ol>
    </li>
 
-   <li><p>Set <var>serialized</var> to ? <span>StructuredSerialize</span>(<var>input</var>,
+   <li><p>Let <var>serialized</var> be ? <span>StructuredSerialize</span>(<var>input</var>,
    <var>memory</var>).</p></li>
 
    <li><p>Let <var>transferDataHolders</var> be a new empty <span
@@ -60147,7 +60147,7 @@ interface <dfn>CanvasDrawImage</dfn> {
   void <span data-x="dom-context-2d-drawImage">drawImage</span>(<span>CanvasImageSource</span> image, unrestricted double sx, unrestricted double sy, unrestricted double sw, unrestricted double sh, unrestricted double dx, unrestricted double dy, unrestricted double dw, unrestricted double dh);
 };
 
-[NoInterfaceObject, Exposed=(Window,Worker)]
+[NoInterfaceObject, Exposed=(Window,Worker), <span>Serializable</span>]
 interface <dfn>CanvasImageData</dfn> {
   // <span>pixel manipulation</span>
   <span>ImageData</span> <span data-x="dom-context-2d-createImageData">createImageData</span>(double sw, double sh);