echo/website/layouts/partials/header.html

<header class="mdl-layout__header">
    <div class="mdl-layout__header-row">
        <a href="/" class="mdl-navigation__link mdl-layout-title">
            {{ .Site.Title }}
        </a>
        <div class="mdl-layout-spacer"></div>
        <nav class="mdl-navigation mdl-layout--large-screen-only">
            <a href="https://github.com/labstack/echo" class="mdl-navigation__link">
                <i class="fa fa-github fa-lg"></i> GitHub
            </a>
        </nav>
    </div>
</header>