title: TWIG: capitalize makes other letters small
body: <p>I have a variable with this content <code>"i want HTML"</code></p>
  
  <p>When I make <code>capitalize</code> <code>{{ variable|capitalize }}</code> the sentence is: <code>"I want html"</code></p>
  
  <p>How can I write only the FIRST letter of the sentence big in TWIG and the others stay like they are!?</p>