Update gflash.nl.yml

config/locales/gflash.nl.yml

-fr:
+nl:
   gflash:
     #
     # These are the translations for the different titles.
     #
     titles:
-      alert: "Votre attention"
-      notice: "Information"
-      success: "Succès"
+      alert: "Uw aandacht"
+      notice: "Informatie"
+      success: "succes"
       warning: "Attention"
       error: "Erreur"
       progress: "Progrès"