Editorial: RangeError is an error, not exception

index.html

@@ -2073,7 +2073,7 @@ <h2>
               <ol>
                 <li>If <a data-cite=
                 "ecma-402#sec-isstructurallyvalidlanguagetag">IsStructurallyValidLanguageTag</a>(<var>details</var>["<a>languageCode</a>"])
-                is false, throw a <a>RangeError</a> exception.
+                is false, throw a <a>RangeError</a>.
                 </li>
                 <li>Set <var>address</var>.<a>[[\languageCode]]</a> to
                 <a data-cite=