[IMP] hr_attendance: add a no-content message

for the employees kanban view in kiosk mode.

addons/hr_attendance/views/hr_employee_view.xml

@@ -82,6 +82,14 @@
         <field name="res_model">hr.employee</field>
         <field name="view_mode">kanban</field>
         <field name="view_id" ref="hr_employees_view_kanban"/>
+        <field name="help" type="html">
+            <p>
+                Create a few employees to be able to select an employee here and perform his check in / check out.
+            </p>
+            <p>
+                To create employees go to the Employees menu.
+            </p>
+        </field>
     </record>
 
 </odoo>
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