Add notes about new param

UPGRADE-1.11.md

@@ -47,3 +47,17 @@
         }
     ]
     ```
+
+1. Constructor of `Core/OrderProcessing/OrderTaxesProcessor.php` has been changed where new service implementing
+   `TaxationAddressResolverInterface` will become mandatory from Sylius version 2.0:
+
+    ```diff
+        public function __construct(
+            ZoneProviderInterface $defaultTaxZoneProvider,
+            ZoneMatcherInterface $zoneMatcher,
+            PrioritizedServiceRegistryInterface $strategyRegistry,
+    +       ?TaxationAddressResolverInterface $taxationAddressResolver = null
+        ) {
+            ...
+        }
+    ```

docs/cookbook/taxation/customize-tax-by-address.rst

@@ -9,27 +9,12 @@ as from 1st July 2021 the new taxation rules will be applied.
 
     You can learn more about new EU taxation rules `here <https://ec.europa.eu/taxation_customs/business/vat/modernising-vat-cross-border-ecommerce_en>`_.
 
-To change the way how the taxes are calculated: by billing or by shipping address, you need to declare ``OrderTaxesProcessor`` with
-additional argument in your config file:
-
-.. code-block:: yaml
-
-    # app/config/services.yaml
-        App\OrderProcessing\OrderTaxesProcessor:
-        arguments:
-            - '@sylius.provider.channel_based_default_zone_provider'
-            - '@sylius.zone_matcher'
-            - '@sylius.registry.tax_calculation_strategy'
-            - '@sylius.taxation_address_resolver'
-        tags:
-            - { name: sylius.order_processor, priority: 10 }
-
-And add a parameter to your config:
+To change the way how the taxes are calculated: by billing or by shipping address, you need to add a parameter to your config:
 
 .. code-block:: yaml
 
     # app/config/packages/_sylius.yaml
     parameters:
         sylius_core.taxation.shipping_address_based_taxation: true
 
-And with this change, the way how taxes are calculated is based on shipping address.
+And with this change, the way how taxes are calculated is now based on shipping address.

src/Sylius/Bundle/CoreBundle/Resources/config/services/order_processing.xml

@@ -54,6 +54,7 @@
             <argument type="service" id="sylius.provider.channel_based_default_zone_provider" />
             <argument type="service" id="sylius.zone_matcher" />
             <argument type="service" id="sylius.registry.tax_calculation_strategy" />
+            <argument type="service" id="sylius.taxation_address_resolver" />
             <tag name="sylius.order_processor" priority="10"/>
         </service>