[FIX] iot: Connection process changed (#714)

We had to modify the connection method due to changes that will be
introduced soon in modern web browsers. (See odoo/odoo#51088)

We also fix the numbering of the connection steps.

iot/config/connect.rst

@@ -25,10 +25,16 @@ Ethernet Connection
 
 2. Power on the IoT Box.
 
-3. Then click on the Scan button.
+3. Read the Pairing Code from a screen or a receipt printer connected to the IoT Box.
 
-.. image:: media/connect04.png
-   :align: center
+   .. image:: media/connect04.png
+
+4. Input the Pairing Code and click on the Pair button.
+
+.. note::
+   Recent changes in modern web browsers forced us to modify the connection wizard.
+   If your screen is different from the screenshots, make sure that the
+   ``iot_pairing`` module is installed.
 
 WiFi Connection
 ~~~~~~~~~~~~~~~
@@ -37,35 +43,31 @@ WiFi Connection
 
 2. Copy the token
 
-.. image:: media/connect05.png
-   :align: center
+   .. image:: media/connect05.png
 
-1. Connect to the IoT Box WiFi Network (make sure there is no ethernet
+3. Connect to the IoT Box WiFi Network (make sure there is no ethernet
    cable plugged in your computer).
 
-.. image:: media/connect06.png
-   :align: center
+   .. image:: media/connect06.png
 
 4. You will be redirected to the IoT Box Homepage (if it doesn't work,
    connect to the IP address of the box). Give a name to your IoT Box (not
    required) and paste the token, then click on next.
 
-.. image:: media/connect07.png
-   :align: center
+   .. image:: media/connect07.png
 
-.. tip::
-   If you are on Runbot, do not forget to add the -all or -base in the
-   token (e.g. this token
-   **http://375228-saas-11-5-iot-f3f920.runbot16.odoo.com\|4957098401**
-   should become
-   **http://375228-saas-11-5-iot-f3f920-all.runbot16.odoo.com\|4957098401**).
+   .. tip::
+      If you are on Runbot, do not forget to add the -all or -base in the
+      token (e.g. this token
+      **http://375228-saas-11-5-iot-f3f920.runbot16.odoo.com\|4957098401**
+      should become
+      **http://375228-saas-11-5-iot-f3f920-all.runbot16.odoo.com\|4957098401**).
 
 5. Choose the WiFi network you want to connect with (enter the password
    if there is one) and click on Submit. Wait a few seconds before being
    redirected to your database.
 
-.. image:: media/connect08.png
-   :align: center
+   .. image:: media/connect08.png
 
 You should now see the IoT Box.