update index.html and .winner.json per recent manifest changes

1996/schweikh1/index.html

@@ -233,6 +233,9 @@ href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1996/schweikh1/sc
 <li><a
 href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1996/schweikh1/errno.h">errno.h</a>
 - declare errno as an extern int</li>
+<li><a
+href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1996/schweikh1/try.sh">try.sh</a>
+- how to run</li>
 <li><a href="1996_schweikh1.tar.bz2">1996_schweikh1.tar.bz2</a> -
 download winning source</li>
 </ul>