title: String to HtmlDocument
body: <p>I'm fetching the html document by URL using <code>WebClient.DownloadString(url)</code> but then its very hard to find the element content that I'm looking for. Whilst reading around I've spotted <code>HtmlDocument</code> and that it has neat things like <code>GetElementById</code>. How can I populate an <code>HtmlDocument</code> with the html returned by <code>url</code>?</p>