chenged ldap_uid to preferred_username

roles/docker-nextcloud/README.md

@@ -94,6 +94,11 @@ docker-compose exec -it -u www-data application /var/www/html/occ
 ```
 ### User Administration 
 
+#### List Users
+```bash
+docker compose exec -it -u www-data application php occ user:list
+```
+
 #### Create user via CLI
 ```bash
 docker compose exec -it -u www-data application php occ user:add {{username}}

roles/docker-nextcloud/templates/oidc.config.php.j2

@@ -98,7 +98,7 @@ return array (
         'mail' => 'email',
         # 'quota' => 'nextcloudQuota',  # Not implemented yet
         # 'home' => 'homeDirectory',    # Not implemented yet
-        'ldap_uid' => '{{ldap.attributes.user_id}}',
+        'ldap_uid' => 'preferred_username',
         # 'groups' => 'ownCloudGroups', # Not implemented yet
         # 'login_filter' => 'realm_access_roles',
     //    'photoURL' => 'picture',