title: Capybara: should have html content
body: <p>How I can check html content on the page with capybara?</p>
  
  <pre><code>page.should have_text('this is &lt;b&gt;bold&lt;/b&gt; "text"')
  </code></pre>
  
  <p>output: </p>
  
  <pre>
  Failure/Error: page.should have_text('this is &lt;b>bold&lt;/b> "text"')
    expected there to be this is &lt;b>bold&lt;/b> \"text\" in "....this is bold \"text\"....."
  </pre>