<https://www.drupaltutorials.de/#personlogo>
<http://schema.org/url>
<https://secure.gravatar.com/avatar/db09f9410bdda42b4cd2ef5ddc08b1d4?s=96&d=mm&r=g>
<https://www.drupaltutorials.de/2012/11/28/drupal-module-finden-und-installieren/>