[IMP] PoS/Hardware: add Google Play link to dual-screen support

closes #15339

X-original-commit: feb0970
Signed-off-by: Loredana Perazzo (lrpz) <lrpz@odoo.com>

Author: tong-odoo

content/applications/sales/point_of_sale/pos_hardware.rst

@@ -65,7 +65,9 @@ To open the customer display, follow these steps:
    - :doc:`configuration/pos_iot`
    - :doc:`../../general/iot`
 
-For POS terminals running the Odoo Android app with dual-screen support,
+For POS terminals running the
+`Odoo <https://play.google.com/store/apps/details?id=com.odoo.mobile>`_ Android app with dual-screen
+support, follow these steps:
 
 #. :doc:`Activate the Point of Sale Mobile module <../../general/apps_modules>` to enable the
    customer display.