Add responsive header nav example

Author: adamwathan

docs/source/docs/examples/navigation.blade.md

@@ -38,6 +38,38 @@ title: "Navigation"
 </ul>
 @endcomponent
 
+## Responsive Header
+
+@component('_partials.code-sample')
+<nav class="flex items-center justify-between flex-wrap bg-teal p-6">
+    <div class="flex items-center flex-no-shrink text-white mr-6">
+        <svg class="h-8 w-8 mr-2" width="54" height="54" viewBox="0 0 54 54" xmlns="http://www.w3.org/2000/svg"><path d="M13.5 22.1c1.8-7.2 6.3-10.8 13.5-10.8 10.8 0 12.15 8.1 17.55 9.45 3.6.9 6.75-.45 9.45-4.05-1.8 7.2-6.3 10.8-13.5 10.8-10.8 0-12.15-8.1-17.55-9.45-3.6-.9-6.75.45-9.45 4.05zM0 38.3c1.8-7.2 6.3-10.8 13.5-10.8 10.8 0 12.15 8.1 17.55 9.45 3.6.9 6.75-.45 9.45-4.05-1.8 7.2-6.3 10.8-13.5 10.8-10.8 0-12.15-8.1-17.55-9.45-3.6-.9-6.75.45-9.45 4.05z"/></svg>
+        <span class="font-semibold text-xl tracking-tight">Tailwind CSS</span>
+    </div>
+    <div class="block lg:hidden">
+        <button class="flex items-center px-3 py-2 border rounded text-teal-lighter border-teal-light hover:text-white hover:border-white">
+            <svg class="h-3 w-3" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M0 3h20v2H0V3zm0 6h20v2H0V9zm0 6h20v2H0v-2z"/></svg>
+        </button>
+    </div>
+    <div class="w-full block flex-grow lg:flex lg:items-center lg:w-auto">
+        <div class="text-sm lg:flex-grow">
+            <a href="#header" class="block mt-4 lg:inline-block lg:mt-0 text-teal-lighter hover:text-white mr-4">
+                Docs
+            </a>
+            <a href="#header" class="block mt-4 lg:inline-block lg:mt-0 text-teal-lighter hover:text-white mr-4">
+                Examples
+            </a>
+            <a href="#header" class="block mt-4 lg:inline-block lg:mt-0 text-teal-lighter hover:text-white">
+                Blog
+            </a>
+        </div>
+        <div>
+            <a href="#" class="inline-block text-sm px-4 py-2 leading-none border rounded text-white border-white hover:border-transparent hover:text-teal hover:bg-white mt-4 lg:mt-0">Download</a>
+        </div>
+    </div>
+</nav>
+@endcomponent
+
 ## Tabs
 
 @component('_partials.code-sample')