Editorial: add Oxford commas

source

@@ -96018,7 +96018,7 @@ interface <dfn interface>NotRestoredReasons</dfn> {
 
   <p>To <dfn data-x="creating a new top-level traversable">create a new top-level traversable</dfn>
   given a <span>browsing context</span>-or-null <var>opener</var>, a string
-  <var>targetName</var> and an optional <span>navigable</span>
+  <var>targetName</var>, and an optional <span>navigable</span>
   <var>openerNavigableForWebDriver</var>:</p>
 
   <ol>
@@ -96832,15 +96832,15 @@ interface <dfn interface>NotRestoredReasons</dfn> {
 
        <li id="noopener"><p>If <var>noopener</var> is true, then set <var>chosen</var> to the
        result of <span>creating a new top-level traversable</span> given null,
-       <var>targetName</var> and <var>currentNavigable</var>.</p></li>
+       <var>targetName</var>, and <var>currentNavigable</var>.</p></li>
 
        <li>
         <p>Otherwise:</p>
 
         <ol>
          <li><p>Set <var>chosen</var> to the result of <span>creating a new top-level
          traversable</span> given <var>currentNavigable</var>'s <span data-x="nav-bc">active
-         browsing context</span>, <var>targetName</var> and <var>currentNavigable</var>.</p></li>
+         browsing context</span>, <var>targetName</var>, and <var>currentNavigable</var>.</p></li>
 
          <li><p>If <var>sandboxingFlagSet</var>'s <span>sandboxed navigation browsing context
          flag</span> is set, then set <var>chosen</var>'s <span data-x="nav-bc">active browsing