grammaro + typo

Author: ADKaster

source

@@ -100911,7 +100911,7 @@ location.href = '#foo';</code></pre>
      data-x="document-state-origin">origin</span>.</p></li>
 
      <li id="descendant-navigable-traversal-navigate-events">
-      <p>If all alll of the following are true:</p>
+      <p>If all of the following are true:</p>
 
       <ul>
         <li><p><var>navigable</var> is not <var>traversable;</var></p></li>