config.inc.php.sample: Add missing variable

git-svn-id: https://svn.code.sf.net/p/postfixadmin/code/trunk@29 a1433add-5e2c-0410-b055-b7f2511e0802

config.inc.php.sample

@@ -178,6 +178,9 @@ $CONF['logging'] = 'YES';
 $CONF['show_header_text'] = 'NO';
 $CONF['header_text'] = ':: Postfix Admin ::';
 
+// link to display under 'Main' menu when logged in as a user.
+$CONF['user_footer_link'] = "http://change-this-to-your.domain.tld/main";
+
 // Footer
 // Below information will be on all pages.
 // If you don't want the footer information to appear set this to 'NO'.