<div id="sparkline"></div>
<script>
$("#sparkline").kendoSparkline({
    type: "line",
    series: [{
        data: [10, 15, 8, 12],
        notes: {
            data: [{
                value: 15,
                text: "Peak Value"
            }],
            icon: {
                background: "orange"
            }
        }
    }]
});
</script>