fix errors in migration scripts

kontor-rails/test/controllers/publisher_controller_test.rb

@@ -0,0 +1,8 @@
+require "test_helper"
+
+class PublisherControllerTest < ActionDispatch::IntegrationTest
+  test "should get index" do
+    get publisher_index_url
+    assert_response :success
+  end
+end