Upload documents with unique time stamp.

client/src/components/header/header.component.jsx

@@ -20,6 +20,7 @@ import Icon, {
   ToolFilled,
   UnorderedListOutlined,
   UserOutlined,
+  QuestionCircleFilled,
 } from "@ant-design/icons";
 import { Layout, Menu } from "antd";
 import React from "react";
@@ -284,6 +285,15 @@ function Header({
             <Link to="/manage/shop/csi">{t("menus.header.shop_csi")}</Link>
           </Menu.Item>
         </Menu.SubMenu>
+        <Menu.Item
+          key="shop"
+          onClick={() => {
+            window.open("https://help.imex.online/", "_blank");
+          }}
+          icon={<Icon component={QuestionCircleFilled} />}
+        >
+          {t("menus.header.help")}
+        </Menu.Item>
         <Menu.SubMenu
           style={{ float: "right" }}
           title={