Add status code

Author: mhartl

app/controllers/microposts_controller.rb

@@ -18,7 +18,7 @@ def destroy
     @micropost.destroy
     flash[:success] = "Micropost deleted"
     if request.referrer.nil? || request.referrer == microposts_url
-      redirect_to root_url
+      redirect_to root_url, status: :see_other
     else
       redirect_to request.referrer, status: :see_other
     end