update changelog

Author: scottaohara

index.html

@@ -64,11 +64,11 @@
         the following substantive additions and/or corrections have been proposed:
       </p>
       <ul>
-        <!--<li>
-          <a href="https://github.com/w3c/html-aria/pull/514">XX July 2025 - Addition:</a>
+        <li>
+          <a href="https://github.com/w3c/html-aria/pull/514">1 December 2025 - Addition:</a>
           Add author rules for the <a href="#att-popovertarget">`popovertarget`</a> and  
           <a href="#att-command">`command`</a> attributes.
-        </li>-->
+        </li>
         <li>
           <a href="https://github.com/w3c/html-aria/pull/556">23 July 2025 - Addition:</a>
           Update the <a href="#el-label">`label`</a> element to allow `role` and `aria-*` attributes