[FIX] iot/studio: fix typo and improve wording

Resolve issues identified during translation

closes #12166

X-original-commit: 294c02b
Signed-off-by: Audrey Vandromme (auva) <auva@odoo.com>

Author: auva-odoo

content/applications/general/iot/connect.rst

@@ -95,7 +95,7 @@ list of :doc:`devices <devices>` connected to the IoT system.
    address`, and :guilabel:`Image version`.
 
 .. note::
-   By default, drivers are automatically :ref:`udpated <iot_updating_iot/handlers>` every time the
+   By default, drivers are automatically :ref:`updated <iot_updating_iot/handlers>` every time the
    IoT system is restarted. To disable automatic updates, uncheck the :guilabel:`Automatic drivers
    update` option.
 

content/applications/studio/fields.rst

@@ -484,7 +484,7 @@ Properties
   :guilabel:`Help Tooltip`. It is displayed inside a tooltip box when hovering with your mouse over
   the field's label.
 - :guilabel:`Placeholder`: To provide an example of how a field should be completed, write it under
-  :guilabel:`Placeholder`. It is displayed in light gray in lieu of the field's value.
+  :guilabel:`Placeholder`. It appears in light gray as a placeholder until a value is entered.
 - :guilabel:`Widget`: To change the default appearance or functionality of a field, select one of
   the available widgets.
 - :guilabel:`Default value`: To add a default value to a field when a record is created, use