Revive download page for builds corresponding to simrel versions

Signed-off-by: Stephan Herrmann <stephan.herrmann@berlin.de>
diff --git a/download.php b/download.php
index 0ebb3c7..886245c 100644
--- a/download.php
+++ b/download.php
@@ -76,7 +76,7 @@
 						<th class="dl-cell">Command Line Compiler</th><th class="dl-cell">New&nbsp;&amp; Noteworthy</th><th class="dl-cell">Bugs Fixed</th></tr>
 			<tr><td colspan="5" class="release-cell"><strong><a href="https://download.eclipse.org/objectteams/updates/ot2.8/202012220836">Build 202012220836 Repo</strong></td></tr>
                 <tr><td style="width: 50px;">&nbsp;</td>
-                    <td class="dl-cell" style="padding-left:5px;"><a href="https://www.eclipse.org/downloads/packages/release/2020-09/r"><img src="images/arrow.gif">&nbsp;Eclipse&nbsp;2020-09</a></td>
+                    <td class="dl-cell" style="padding-left:5px;"><a href="https://www.eclipse.org/downloads/packages/release/2020-12/r"><img src="images/arrow.gif">&nbsp;Eclipse&nbsp;2020-12</a></td>
                     <td class="dl-cell" style="min-width: 110px;padding-left:5px;">
                     <!--<a href="https://www.eclipse.org/downloads/download.php?file=/objectteams/ecotj/ecotj-R-2.5.0-201606070953.jar"><img src="images/otdt/jar_obj.gif" valign="middle"> ecotj.jar</a>-->
                     </td>