Lower slug character limit to 1

Author: IvanJelicSF

src/SWP/Bundle/ContentBundle/Resources/config/validation.yml

@@ -8,7 +8,7 @@ SWP\Bundle\ContentBundle\Model\Article:
         slug:
             - NotBlank: ~
             - Length:
-                  min: 3
+                  min: 1
                   max: 200
                   minMessage: 'Slug must be at least {{ limit }} characters long'
                   maxMessage: 'Slug cannot be longer than {{ limit }} characters'