minor symfony#9571 fix versionadded directive (xabbuh)

This PR was merged into the 4.0 branch.

Discussion
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fix versionadded directive

This fixes symfony#9569.

Commits
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401f627 fix versionadded directive

Author: xabbuh

controller.rst

@@ -308,7 +308,7 @@ use:
 
     $ php bin/console make:crud Product
 
-.. versionadded::
+.. versionadded:: 1.2
     The ``make:crud`` command was introduced in MakerBundle 1.2.
 
 .. index::