Hook help

group_permissions.module

@@ -5,8 +5,23 @@
  * Hooks for handling group_permissions module features.
  */
 
+use Drupal\Core\Routing\RouteMatchInterface;
 use Drupal\group\Entity\GroupInterface;
 
+/**
+ * Implements hook help.
+ */
+function group_permissions_help($route_name, RouteMatchInterface $route_match) {
+  switch ($route_name) {
+    case 'help.page.group_permissions':
+      $path = __DIR__ . '/README.md';
+
+      if (file_exists($path)) {
+        return '<pre>' . file_get_contents($path) . '</pre>';
+      }
+  }
+}
+
 /**
  * Implements hook_entity_delete().
  */