minor #10268 [Messenger] Error in XML configuration (nicoweb)

This PR was merged into the 4.1 branch.

Discussion
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[Messenger] Error in XML configuration

Commits
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9ba447c [Messenger] Error in XML configuration

Author: javiereguiluz

messenger.rst

@@ -129,7 +129,7 @@ the messenger component, the following configuration should have been created:
 
         <!-- config/packages/messenger.xml -->
         <?xml version="1.0" encoding="UTF-8" ?>
-        <container xmlns="http://symfony.com/schema/dic/symfony"
+        <container xmlns="http://symfony.com/schema/dic/services"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xmlns:framework="http://symfony.com/schema/dic/symfony"
             xsi:schemaLocation="http://symfony.com/schema/dic/services
@@ -199,7 +199,7 @@ configuration:
 
         <!-- config/packages/messenger.xml -->
         <?xml version="1.0" encoding="UTF-8" ?>
-        <container xmlns="http://symfony.com/schema/dic/symfony"
+        <container xmlns="http://symfony.com/schema/dic/services"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xmlns:framework="http://symfony.com/schema/dic/symfony"
             xsi:schemaLocation="http://symfony.com/schema/dic/services
@@ -248,7 +248,7 @@ instead of a class name:
 
         <!-- config/packages/messenger.xml -->
         <?xml version="1.0" encoding="UTF-8" ?>
-        <container xmlns="http://symfony.com/schema/dic/symfony"
+        <container xmlns="http://symfony.com/schema/dic/services"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xmlns:framework="http://symfony.com/schema/dic/symfony"
             xsi:schemaLocation="http://symfony.com/schema/dic/services
@@ -295,7 +295,8 @@ A class of messages can also be routed to multiple senders by specifying a list:
     .. code-block:: xml
 
         <!-- config/packages/messenger.xml -->
-        <container xmlns="http://symfony.com/schema/dic/symfony"
+        <?xml version="1.0" encoding="UTF-8" ?>
+        <container xmlns="http://symfony.com/schema/dic/services"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xmlns:framework="http://symfony.com/schema/dic/symfony"
             xsi:schemaLocation="http://symfony.com/schema/dic/services
@@ -340,7 +341,8 @@ while still having them passed to their respective handler:
     .. code-block:: xml
 
         <!-- config/packages/messenger.xml -->
-        <container xmlns="http://symfony.com/schema/dic/symfony"
+        <?xml version="1.0" encoding="UTF-8" ?>
+        <container xmlns="http://symfony.com/schema/dic/services"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xmlns:framework="http://symfony.com/schema/dic/symfony"
             xsi:schemaLocation="http://symfony.com/schema/dic/services
@@ -410,7 +412,8 @@ this:
     .. code-block:: xml
 
         <!-- config/packages/messenger.xml -->
-        <container xmlns="http://symfony.com/schema/dic/symfony"
+        <?xml version="1.0" encoding="UTF-8" ?>
+        <container xmlns="http://symfony.com/schema/dic/services"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xmlns:framework="http://symfony.com/schema/dic/symfony"
             xsi:schemaLocation="http://symfony.com/schema/dic/services
@@ -522,7 +525,8 @@ within the buses to add some extra capabilities like this:
     .. code-block:: xml
 
         <!-- config/packages/messenger.xml -->
-        <container xmlns="http://symfony.com/schema/dic/symfony"
+        <?xml version="1.0" encoding="UTF-8" ?>
+        <container xmlns="http://symfony.com/schema/dic/services"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xmlns:framework="http://symfony.com/schema/dic/symfony"
             xsi:schemaLocation="http://symfony.com/schema/dic/services
@@ -579,7 +583,8 @@ you can disable them like this:
     .. code-block:: xml
 
         <!-- config/packages/messenger.xml -->
-        <container xmlns="http://symfony.com/schema/dic/symfony"
+        <?xml version="1.0" encoding="UTF-8" ?>
+        <container xmlns="http://symfony.com/schema/dic/services"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xmlns:framework="http://symfony.com/schema/dic/symfony"
             xsi:schemaLocation="http://symfony.com/schema/dic/services
@@ -717,7 +722,8 @@ Then you can reference and configure the
     .. code-block:: xml
 
         <!-- config/packages/messenger.xml -->
-        <container xmlns="http://symfony.com/schema/dic/symfony"
+        <?xml version="1.0" encoding="UTF-8" ?>
+        <container xmlns="http://symfony.com/schema/dic/services"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xmlns:framework="http://symfony.com/schema/dic/symfony"
             xsi:schemaLocation="http://symfony.com/schema/dic/services
@@ -881,7 +887,7 @@ named transport using your own DSN:
 
         <!-- config/packages/messenger.xml -->
         <?xml version="1.0" encoding="UTF-8" ?>
-        <container xmlns="http://symfony.com/schema/dic/symfony"
+        <container xmlns="http://symfony.com/schema/dic/services"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xmlns:framework="http://symfony.com/schema/dic/symfony"
             xsi:schemaLocation="http://symfony.com/schema/dic/services