[docs] range

<!DOCTYPE html>
<html>

<head>
  <meta charset="utf-8">
  <title>ZingSoft Demo</title>

  <script nonce="undefined" src="https://cdn.zingchart.com/zingchart.min.js"></script>
  <style>
    html,
    body,
    #myChart {
      height: 100%;
      width: 100%;
    }
  </style>
</head>

<body>
  <div id='myChart'></div>
  <script>
    ZC.LICENSE = ["569d52cefae586f634c54f86dc99e6a9", "b55b025e438fa8a98e32482b5f768ff5"];
    let chartConfig = {
      type: 'range',
      scaleX: {
        label: {
          text: 'Above is an example of a category scale'
        },
        labels: ['Jan', 'Feb', 'March', 'April', 'May', 'June', 'July', 'Aug', 'Sept', 'Oct']
      },
      series: [{
        values: [
          [15, 30],
          [20, 40],
          [16, 35],
          [21, 30],
          [25, 45],
          [18, 27],
          [23, 35],
          [29, 39],
          [27, 30],
          [19, 34]
        ]
      }]
    };

    zingchart.render({
      id: 'myChart',
      data: chartConfig,
      height: '100%',
      width: '100%'
    });
  </script>
</body>

</html>

<!DOCTYPE html>
<html>

<head>
  <meta charset="utf-8">
  <title>ZingSoft Demo</title>

  <script src="https://cdn.zingchart.com/zingchart.min.js"></script>
</head>

<body>
  <div id='myChart'></div>
</body>

</html>

html,
body,
#myChart {
  height: 100%;
  width: 100%;
}

let chartConfig = {
  type: 'range',
  scaleX: {
    label: {
      text: 'Above is an example of a category scale'
    },
    labels: ['Jan', 'Feb', 'March', 'April', 'May', 'June', 'July', 'Aug', 'Sept', 'Oct']
  },
  series: [{
    values: [
      [15, 30],
      [20, 40],
      [16, 35],
      [21, 30],
      [25, 45],
      [18, 27],
      [23, 35],
      [29, 39],
      [27, 30],
      [19, 34]
    ]
  }]
};

zingchart.render({
  id: 'myChart',
  data: chartConfig,
  height: '100%',
  width: '100%'
});