title: How to add custom popover in react-calendar-timeline
body: <p>I am using react-calendar-timeline(<a href="https://www.npmjs.com/package/react-calendar-timeline" rel="nofollow noreferrer">https://www.npmjs.com/package/react-calendar-timeline</a>). I need to add a custom popover which will have all the details and a form to update it. Any prop in which I can pass render method in it?</p>