Added short documentation for connection string

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@7184 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/dtml/addERP5Site.dtml

@@ -180,6 +180,7 @@
   </tr>
 </table>
 </form>
+Connection String syntax: <code>database[@host] user passwd</code>
 
 <dtml-if manage_page_footer>
   <dtml-var manage_page_footer>