chartts js 2 y axes label

1var canvas = document.getElementById('chart');
2new Chart(canvas, {
3  type: 'line',
4  data: {
5    labels: ['1', '2', '3', '4', '5'],
6    datasets: [{
7      label: 'A',
8      yAxisID: 'A',
9      data: [100, 96, 84, 76, 69]
10    }, {
11      label: 'B',
12      yAxisID: 'B',
13      data: [1, 1, 1, 1, 0]
14    }]
15  },
16  options: {
17    scales: {
18      yAxes: [{
19        id: 'A',
20        type: 'linear',
21        position: 'left',
22      }, {
23        id: 'B',
24        type: 'linear',
25        position: 'right',
26        ticks: {
27          max: 1,
28          min: 0
29        }
30      }]
31    }
32  }
33});
34