Typo in class name

Fix after Merge pull request #1308 from ddebree/parent_classes

Builder/ShowBuilderInterface.php

@@ -15,7 +15,7 @@ use Sonata\AdminBundle\Admin\FieldDescriptionInterface;
 use Sonata\AdminBundle\Admin\AdminInterface;
 use Sonata\AdminBundle\Admin\FieldDescriptionCollection;
 
-interface ShowBuilderInterface extends BuilderInterfaces
+interface ShowBuilderInterface extends BuilderInterface
 {
     /**
      * @abstract