Two small errors.

[eatingli]

At page CH7.

1. Code in "src/actions/todoActions.js". "CREATE_TODO , DELETE_TODO, CHANGE_TEXT" are used as string.

export const createTodo = createAction('CREATE_TODO');
export const deleteTodo = createAction('DELETE_TODO');
export const changeText = createAction('CHANGE_TEXT');

2. Link "上一章：Redux 基礎概念". It has error url.