templates/ -> resources/views/

resources/views/partials/header.blade.php

@@ -0,0 +1,10 @@
+<header class="banner">
+  <div class="container">
+    <a class="brand" href="{{ home_url('/') }}">{{ get_bloginfo('name', 'display') }}</a>
+    <nav class="nav-primary">
+      @if (has_nav_menu('primary_navigation'))
+        {!! wp_nav_menu(['theme_location' => 'primary_navigation', 'menu_class' => 'nav']) !!}
+      @endif
+    </nav>
+  </div>
+</header>