Use version link in top documentation links.

docs.phtml

@@ -23,8 +23,8 @@
 
   <p class="justify"><?php echo T_("There are two major <span class=\"gnucash\">GnuCash</span> documentation packages to help users:");?></p>
   <ul>
-    <li><a href="<?=$top_dir;?>/viewdoc.phtml?doc=help"><b><?php echo T_("The Help Manual");?></b></a></li>
-    <li><a href="<?=$top_dir;?>/viewdoc.phtml?doc=guide"><b><?php echo T_("The Tutorial and Concepts Guide");?></b></a></li>
+    <li><a href="<?=$top_dir;?>/viewdoc.phtml?rev=<?=$major_stable;?>&amp;lang=C&amp;doc=help"><b><?php echo T_("The Help Manual");?></b></a></li>
+    <li><a href="<?=$top_dir;?>/viewdoc.phtml?rev=<?=$major_stable;?>&amp;lang=C&amp;doc=guide"><b><?php echo T_("The Tutorial and Concepts Guide");?></b></a></li>
   </ul>
 
   <p class="justify"><?php echo T_("The <b>Help Manual</b> is designed to be a quick reference of how to accomplish specific tasks and how to use the features in <span class=\"gnucash\">GnuCash</span>. The <b>Concepts Guide</b> is designed to be an in depth guide to the concepts behind using <span class=\"gnucash\">GnuCash</span> with a tutorial to show how to put those concepts into practice.");?></p>