<scriptsrc="sparklines.js"></script><spanclass="sparkline" data-values="1,4,3,6,5"></span><spanclass="sparkline sparkline-filled" data-values="1,4,3,6,5"></span>Anything with the sparkline class will get an SVG sparkline made from the values in data-values appended. Add the class sparkline‑filled for a filled sparkline like above.
It's not a bad idea to add style too:
.sparklinesvg {
stroke: mediumseagreen;
stroke-width:1.5px;
}
.sparkline-filledsvg {
fill:rgba(60,179,113,0.25);
}