Old deep links to 3 clusters should work

Links from https://www.helmholtz.de/forschung/information-data-science/helmholtz-federated-it-services-hifis/ (and possibly distributed elsewhere) should work:

• https://www.hifis.net/services/cloud
• https://www.hifis.net/services/backbone
• https://www.hifis.net/services/software