chore: add docs for indented sublevel menus.

Author: Sebastian Thulin

views/pages/components/usage/nav/nav.json

@@ -9,6 +9,11 @@
         "subHeading": "",
         "text": ""
     },
+    "vertical-indented": {
+        "heading": "Vertical navigation (with border and indented)",
+        "subHeading": "",
+        "text": ""
+    },
     "horizontal": {
         "heading": "Horizontal navigation",
         "subHeading": "",

views/pages/components/usage/nav/vertical-indented.blade.php

@@ -0,0 +1,10 @@
+@nav([
+    'items' => \HbgStyleGuide\Navigation::getMockedMultilevel(),
+    'classList' => ['u-position--relative', 'c-nav--bordered'],
+    'childItemsUrl' => '/',
+    'direction' => 'vertical',
+    'includeToggle' => true,
+    'height' => 'sm',
+    'indentSubLevels' => true,
+])
+@endnav