title: How to install the Intl extension for Twig
body: <p>The <a href="https://twig-extensions.readthedocs.io/en/latest/intl.html" rel="noreferrer">Intl extension</a> is an extension for Twig that adds the <code>localizeddate</code>, <code>localizednumber</code> and <code>localizedcurrency</code> filters. How can I install and set up the extension so that I can use those filters in my Twig templates?</p>