add cms controller

app/controllers/cms_controller.rb

@@ -0,0 +1,4 @@
+class CmsController < ApplicationController
+  def view
+  end
+end

app/helpers/cms_helper.rb

@@ -0,0 +1,2 @@
+module CmsHelper
+end

app/views/cms/view.haml

@@ -0,0 +1 @@
+%h1 CMS