update linechart with chartjs code example

Example 1: chart js line and bar

var mixedChart = new Chart(ctx, {
    type: 'bar',
    data: {
        datasets: [{
            label: 'Bar Dataset',
            data: [10, 20, 30, 40],
            // this dataset is drawn below
            order: 1
        }, {
            label: 'Line Dataset',
            data: [10, 10, 10, 10],
            type: 'line',
            // this dataset is drawn on top
            order: 2
        }],
        labels: ['January', 'February', 'March', 'April']
    },
    options: options
});

Example 2: chart.js line chart multiple labels

const myChart = new Chart(ctx, {
    type: 'doughnut',
    data: {
        datasets: [{
            data: [1, 2, 3, 4, 5],
            backgroundColor: [
                'green',
                'yellow',
                'red',
                'purple',
                'blue',
            ],
            labels: [
                'green',
                'yellow',
                'red',
                'purple',
                'blue',
            ]
        }, {
            data: [6, 7, 8],
            backgroundColor: [
                'black',
                'grey',
                'lightgrey'
            ],
            labels: [
                'black',
                'grey',
                'lightgrey'
            ],
        },]
    }
  //....