minor #6529 [DependencyInjection] Unquote services FQCN in autowiring examples (chalasr)

This PR was merged into the 2.8 branch.

Discussion
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[DependencyInjection] Unquote services FQCN in autowiring examples

In most examples of service declaration, the `class` value has no quotes, but in this one, they have simple quotes.

Commits
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54d84e4 [DependencyInjection] Unquote services FQCN in autowiring examples

Author: xabbuh

components/dependency_injection/autowiring.rst

@@ -62,7 +62,7 @@ service is marked as autowired:
         # app/config/services.yml
         services:
             twitter_client:
-                class:    'AppBundle\TwitterClient'
+                class:    AppBundle\TwitterClient
                 autowire: true
 
     .. code-block:: xml
@@ -200,10 +200,10 @@ subsystem isn't able to find itself the interface implementation to register:
         # app/config/services.yml
         services:
             rot13_transformer:
-                class: 'AppBundle\Rot13Transformer'
+                class: AppBundle\Rot13Transformer
 
             twitter_client:
-                class:    'AppBundle\TwitterClient'
+                class:    AppBundle\TwitterClient
                 autowire: true
 
     .. code-block:: xml