3401796 - Add help hook

Closes #3401796

unpublished_node_permissions.module

@@ -7,6 +7,21 @@
 
 use Drupal\Core\Access\AccessResult;
 use Drupal\node\NodeInterface;
+use Drupal\Core\Routing\RouteMatchInterface;
+
+/**
+ * Implements hook_help().
+ */
+function unpublished_node_permissions_help($route_name, RouteMatchInterface $route_match) {
+  switch ($route_name) {
+    case 'help.page.unpublished_node_permissions':
+      $output = '';
+      $output .= '<h3>' . t('About') . '</h3>';
+      $output .= '<p>' . t('Creates permisisons per node content type to control access to unpublished nodes per content type.') . '</p>';
+
+      return $output;
+  }
+}
 
 /**
  * Implements hook_views_data_alter().