secfilter: fix table of contents index points [skip ci]

(cherry picked from commit 4ade5f53c1f7f6eb7357b0561b67928e39a91b9f)

src/modules/secfilter/doc/secfilter_admin.xml

@@ -827,7 +827,6 @@
 		</programlisting>
        </example>
      </section>
-	</section>
 
 	<section id="secfilter.r.del_wl">
 		<title>
@@ -855,6 +854,7 @@
 		</programlisting>
 		</example>
 	</section>
+	</section>
 
  	<section>
      <title>Installation</title>