Update revision history

index.html

@@ -1597,6 +1597,7 @@ <h1>Revision history</h1>
         <p>The following is an informative summary of substantial and major editorial changes between publications of this specification, relative to the [[PointerEvents2]] specification.
             See the <a href="https://github.com/w3c/pointerevents/commits">complete revision history of the Editor's Drafts of this specification</a>.</p>
         <ul>
+            <li><a href="https://github.com/w3c/pointerevents/pull/491">Explain how a removed DOM node should be handled for boundary events</a></li>
             <li><a href="https://github.com/w3c/pointerevents/pull/490">Handle pointer capture node removal asynchronously</a></li>
             <li><a href="https://github.com/w3c/pointerevents/pull/464">Add clarification about <code>pointercancel</code> coordinates/properties</a></li>
             <li><a href="https://github.com/w3c/pointerevents/pull/437">Define a section for suppressing a pointer event stream</a></li>