You can pass plugin options using data-options attribute. Please make sure to use valid json code.
Plugin Docs JSON Formatter
<span class="sparkline"
data-values="[2, 4, 3, 4, 5, 4, 5, 4, 3, 4, 5, 6, 4, 5, 6, 3, 5, 4, 5, 4, 5, 4, 3, 4, 5, 6, 7, 5, 4, 3, 5, 6]"
data-options='{
"type": "bar",
"height": "125",
"barWidth": 13,
"colorMap": {
"7": "#a1a1a1"
},
"barSpacing": 2,
"barColor": "#26B99A"
}'>
</span>