title: How to change the title of page dynamically with Twig
body: <p>Im using Twig for template in my website, I extend <code>layout.html.twig</code> in all my others twig pages,so In my <code>layout.html.twig</code> I have the title of page :</p>
  <pre><code>&lt;title&gt;{% block title %}Title of my website{% endblock %}&lt;/title&gt;
  </code></pre>
  <p>Now my problem is how to change this title dynamically in all my pages, for example I have <code>news.html.twig</code> to show all latest news in the world, so I hope when I display my news page I have the title of the news in my title of page...</p>
  <pre><code>&lt;title&gt;{% block title %}Title of the news{% endblock %}&lt;/title&gt;
  </code></pre>