minor symfony#8006 Fixed typo (richard4339)

This PR was submitted for the master branch but it was merged into the 3.3 branch instead (closes symfony#8006).

Discussion
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Fixed typo

Default was spelled "defaut"

Commits
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b9abf89 Fixed typo

Author: xabbuh

service_container.rst

@@ -989,7 +989,7 @@ If you want to pass the second, you'll need to :ref:`manually wire the service <
 
     If you do *not* create the alias and are :ref:`loading all services from src/AppBundle <service-container-services-load-example>`,
     then *three* services have been created (the automatic service + your two services)
-    and the automatically loaded service will be passed - by defaut - when you type-hint
+    and the automatically loaded service will be passed - by default - when you type-hint
     ``SiteUpdateManager``. That's why creating the alias is a good idea.
 
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