added demo code to step 5

step2-05/demo/src/actions/index.ts

@@ -0,0 +1,9 @@
+import nextId from 'uuid/v4';
+
+export const actions = {
+  addTodo: (label: string) => ({ type: 'addTodo', id: nextId(), label }),
+  remove: (id: string) => ({ type: 'remove', id }),
+  complete: (id: string) => ({ type: 'complete', id }),
+  clear: () => ({ type: 'clear' }),
+  setFilter: (filter: string) => ({ type: 'setFilter', filter })
+};