HTML/CSS: Doctype

Simple:

<!DOCTYPE html>

<html lang="fr">

<head>

    <meta charset="utf-8">

    <title>Titre de la page</title>

    <meta name="viewport" content="width=device-width, initial-scale=1">

    <meta name="description" content="ici la description qui apparait sur les moteurs de recherche" />
</head>

<body>
</body>

</html>

Incluant le link css et le lien vers fontawesome et google fonts:

<!DOCTYPE html>
<html lang="fr">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Gothic</title>

    <script
      src="https://kit.fontawesome.com/964bff7cb2.js"
      crossorigin="anonymous"
    ></script>
    <link
      href="https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,700;1,400&display=swap"
      rel="stylesheet"
    />
    <link rel="stylesheet" href="./Styles/style.css" />
  </head>
  <body>