title: htaccess - limit the number of words in url slug
body: <p>How to limit to 4 the number of words in a slug using htaccess only?</p>
  
  <p>from</p>
  
  <pre><code>exemple.com/hello-world-how-are-you
  </code></pre>
  
  <p>to</p>
  
  <pre><code>exemple.com/hello-world-how-are
  </code></pre>