title: What does loadHTMLString:baseURL:
body: <p>I new to iOS programming and tried to figure out what <code>loadHTMLString:baseURL:</code> really does, but I can't find a satisfying explanation. The site of Apple just says:</p>
  
  <blockquote>
    <p>Sets the main page content and base URL.</p>
  </blockquote>
  
  <p>Can someone please explain this in a more detailed way to me?</p>