description = "Site Header"
==
<header>
    <nav class="navbar navbar-expand-lg navbar-light">
        <a class="navbar-brand" href="/">Jason Williams</a>
        <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarsExample05" aria-controls="navbarsExample05" aria-expanded="false" aria-label="Toggle navigation">
            <span class="navbar-toggler-icon"></span>
        </button>

        <div class="collapse navbar-collapse" id="navbarsExample05">
            <ul class="navbar-nav mr-auto">
                <li class="nav-item active">
                    <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
                </li>
                <li class="nav-item">
                    <a class="nav-link" href="#">Feed</a>
                </li>
                <li class="nav-item">
                    <a class="nav-link" href="#">Résumé</a>
                </li>
            </ul>

            <form class="form-inline my-2 my-md-0">
                <input class="form-control" type="text" placeholder="Search">
            </form>
        </div>
    </nav>
</header>