minor #229 Fix code example (eliashaeussler)

This PR was merged into the 2.x-dev branch.

Discussion
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Fix code example

This PR fixes a wrong code example in `README.md` where `class` was used instead of `enum`.

Commits
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616d612 Fix code example

README.md

@@ -446,7 +446,7 @@ An interface and a trait have been added for that purpose.
 use Elao\Enum\Bridge\Symfony\Translation\TranslatableEnumInterface;
 use Elao\Enum\Bridge\Symfony\Translation\TranslatableEnumTrait;
 
-class Card: string implements TranslatableEnumInterface
+enum Card: string implements TranslatableEnumInterface
 {
     use TranslatableEnumTrait;