Editorial: fix typo targetNavigable

Fixes #11709.

Author: zcorpan

source

@@ -106194,10 +106194,9 @@ location.href = '#foo';</code></pre>
      <li><p>If <var>url</var> <span data-x="concept-url-equals">equals</span>
      <var>navigable</var>'s <span data-x="nav-document">active document</span>'s <span
      data-x="concept-document-url">URL</span>, and <var>initiatorOriginSnapshot</var> is <span>same
-     origin</span> with <var>targetNavigable</var>'s <span data-x="nav-document">active
-     document</span>'s <span data-x="concept-document-origin">origin</span>, then set
-     <var>historyHandling</var> to "<code
-     data-x="NavigationHistoryBehavior-replace">replace</code>".</p></li>
+     origin</span> with <var>navigable</var>'s <span data-x="nav-document">active document</span>'s
+     <span data-x="concept-document-origin">origin</span>, then set <var>historyHandling</var> to
+     "<code data-x="NavigationHistoryBehavior-replace">replace</code>".</p></li>
 
      <li><p>Otherwise, set <var>historyHandling</var> to "<code
      data-x="NavigationHistoryBehavior-push">push</code>".</p></li>