title: Is it possible to have HTML in a tooltip in amcharts 5
body: <p>I would like to add a link to a tooltip in <a href="https://www.amcharts.com/docs/v5/" rel="nofollow noreferrer">amcharts5</a>. I see documentation for using tooltipHTML in version 4, but no mention in the docs either way if this is possible in amcharts5.  Using tooltipHTML doesn't seem to work.</p>