Update README, documentation with Echarts v5.0 examples about echarts-stat HOT 2 OPEN

import * as echarts from 'echarts';
import {transform} from 'echarts-stat';

echarts.registerTransform(transform.histogram);

var myChart = echarts.init(document.getElementById('main0'));

var option = {
    dataset: [{
        source: [
            [8.3, 143], [8.6, 214], [8.8, 251], [10.5, 26], [10.7, 86], [10.8, 93], [11.0, 176], [11.0, 39], [11.1, 221], [11.2, 188], [11.3, 57], [11.4, 91], [11.4, 191], [11.7, 8], [12.0, 196], [12.9, 177], [12.9, 153], [13.3, 201], [13.7, 199], [13.8, 47], [14.0, 81], [14.2, 98], [14.5, 121], [16.0, 37], [16.3, 12], [17.3, 105], [17.5, 168], [17.9, 84], [18.0, 197], [18.0, 155], [20.6, 125]
        ]
    }, {
        transform: {
            type: 'ecStat:histogram'
        }
    }],
    tooltip: {
    },
    xAxis: {
        type: 'category',
        scale: true
    },
    yAxis: {},
    series: {
        name: 'histogram',
        type: 'bar',
        barWidth: '99.3%',
        label: {
            show: true,
            position: 'top'
        },
        datasetIndex: 1
    }
};

myChart.setOption(option);