IG charter: Corrected date of extension.

i18n-ig/charter.html

@@ -47,7 +47,7 @@ <h1 id="title">Internationalization Interest Group (I18n IG) Charter</h1>
   <tbody>
     <tr id="Duration">
       <th rowspan="1" colspan="1">End date</th>
-      <td rowspan="1" colspan="1">31 August 2018</td>
+      <td rowspan="1" colspan="1">30 September 2018</td>
     </tr>
     <tr>
       <th rowspan="1" colspan="1">Confidentiality</th>
@@ -151,7 +151,7 @@ <h2 id="about">About this Charter</h2>
 shape="rect">Process Document</a>. In the event of a conflict between this
 document or the provisions of any charter and the W3C Process, the W3C Process
 shall take precedence.</p>
-<p>This charter was extended from 31 March 2018 to 31 August 2018.</p>
+<p>This charter was extended from 31 March 2018 to 30 September 2018.</p>
 <p>See the <a
 href="https://www.w3.org/2006/10/i18n-recharter/ig-charter">previous charter</a>
   for this group.</p>