Editorial: fix markup so that word is linked correctly

This fixes the one occurrence of <span data-lt=""></span> markup in the
document (at least without other attributes preceding the data-lt
attribute), and causes the word "created" to be linked as I presume was
intended.

This error was introduced in 6881195.

source

@@ -10469,7 +10469,7 @@ o.myself = o;</code></pre>
   data-x="dom-document-domain">document.domain</code>. A <code>Document</code>'s <span
   data-x="concept-document-origin">origin</span> can differ from the <span
   data-x="concept-url-origin">origin</span> of its <span data-x="concept-document-url">URL</span>;
-  for example when a <span>child navigable</span> is <span data-lt="create a new child
+  for example when a <span>child navigable</span> is <span data-x="create a new child
   navigable">created</span>, its <span data-x="nav-document">active document</span>'s <span
   data-x="concept-document-origin">origin</span> is inherited from its <span
   data-x="nav-parent">parent</span>'s <span data-x="nav-document">active document</span>'s <span