change error message

Signed-off-by: Kai Wagner <kai.wagner@percona.com>

Author: ImTheKai

app/controllers/notes_controller.rb

@@ -61,7 +61,7 @@ def set_note
       return
     end
     unless @note.author_id == current_user.id
-      redirect_back fallback_location: topic_path(@note.topic), alert: "You can only edit your own notes"
+      redirect_back fallback_location: topic_path(@note.topic), alert: "You can edit or delete your own notes"
       return
     end
   end