minor symfony#8148 Update usage.rst (typo) (adpauly)

This PR was merged into the 3.3 branch.

Discussion
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Update usage.rst (typo)

Typo?

Commits
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9e59aed Update usage.rst

Author: xabbuh

workflow/usage.rst

@@ -229,7 +229,7 @@ order:
     * ``workflow.[workflow name].enter``
     * ``workflow.[workflow name].enter.[place name]``
 
-``work.flow.entered``
+``workflow.entered``
 
     Similar to ``workflow.enter``, except the marking store is updated before this
     event (making it a good place to flush data in Doctrine).