content: import React from 'react';
  import TodoListContainer from '../containers/TodoListContainer';
  import AddTodo from '../components/AddTodo';
  
  class App extends React.PureComponent {
    render() {
      return (
        <div>
          <h1>Todo list</h1>
          <AddTodo />
          <TodoListContainer />
        </div>
      );
    }
  }
  
  export default App;
  