title: Adding parameters to URL, putting array in query string
body: <h1>Objective</h1>
  <p>I've built an interactive where people can choose six players to make their all-star team. When they click share to Twitter, my hope is to have a URL containing parameters of all six players something like <code>website.com/?playerName=picked?playerName=picked</code> so that people can share their teams</p>
  <h1>Question</h1>
  <ul>
  <li>What is the best way to append parameters to a URL?</li>
  <li>How do you put an array into a query string?</li>
  </ul>