PR recommendations; clarify max-depth config

modules/islandora_breadcrumbs/src/Form/IslandoraBreadcrumbsSettingsForm.php

@@ -45,8 +45,8 @@ class IslandoraBreadcrumbsSettingsForm extends ConfigFormBase {
       '#default_value' => $config->get('maxDepth'),
       '#min' => -1,
       '#step' => 1,
-      '#title' => $this->t('Maximum number of breadcrumbs'),
+      '#title' => $this->t('Maximum number of ancestor breadcrumbs'),
-      '#description' => $this->t("Stop adding parent references to the breadrumbs at this number of items. The default value, '-1' disables this feature."),
+      '#description' => $this->t("Stops adding ancestor references when the chain reaches this number. The count does not include the current node when enabled. The default value, '-1' disables this feature."),
     ];
 
     $form['includeSelf'] = [

modules/islandora_breadcrumbs/src/IslandoraBreadcrumbBuilder.php

@@ -83,6 +83,7 @@ class IslandoraBreadcrumbBuilder implements BreadcrumbBuilderInterface {
     $nid = $route_match->getRawParameters()->get('node');
     $node = $this->nodeStorage->load($nid);
     $breadcrumb = new Breadcrumb();
+    $breadcrumb->addCacheableDependency($this->config);
     $breadcrumb->addLink(Link::createFromRoute($this->t('Home'), '<front>'));
 
     $chain = array_reverse($this->utils->findAncestors($node, $this->config->get('referenceFields'), $this->config->get('maxDepth')));