title: How can I create a tabset in this flexdashboard layout
body: <p>Pretty sure i'm missing something obvious here but..</p>
  <p><a href="https://i.stack.imgur.com/U4M98.png" rel="noreferrer"><img src="https://i.stack.imgur.com/U4M98.png" alt="enter image description here" /></a></p>
  <p>How would I reconfigure the code so that  chart 3 is a tabset?</p>
  <p>TIA</p>