Fix existing broken links
At this moment, there are 12 broken links in the docs that should be fixed:
Getting links from: http://localhost:8000/backbone-aai/mailinglists/
├─BROKEN─ matilto:hdf-aai@lists.kit.edu (BLC_INVALID)
├─BROKEN─ matilto:hdf-services@lists.kit.edu (BLC_INVALID)
--
Getting links from: http://localhost:8000/backbone-aai/vo-creation-form/
├─BROKEN─ http://localhost:8000/policies/top-level.pdf (HTTP_404)
--
Getting links from: http://localhost:8000/service-integration/jupyter/requirements
├─BROKEN─ http://localhost:8000/service-integration/jupyter/requirements/licensing (HTTP_404)
├─BROKEN─ http://localhost:8000/service-integration/jupyter/requirements/software (HTTP_404)
--
Getting links from: http://localhost:8000/service-integration/nextcloud/requirements
├─BROKEN─ http://localhost:8000/service-integration/nextcloud/requirements/licensing (HTTP_404)
├─BROKEN─ http://localhost:8000/service-integration/nextcloud/requirements/software (HTTP_404)
--
Getting links from: http://localhost:8000/service-integration/openstack/requirements
├─BROKEN─ http://localhost:8000/service-integration/openstack/requirements/licensing (HTTP_404)
├─BROKEN─ http://localhost:8000/service-integration/openstack/requirements/software (HTTP_404)
--
Getting links from: http://localhost:8000/service-integration/gitlab/requirements
├─BROKEN─ http://localhost:8000/service-integration/gitlab/requirements/licensing (HTTP_404)
├─BROKEN─ http://localhost:8000/service-integration/gitlab/requirements/software (HTTP_404)
--
Getting links from: http://localhost:8000/service-integration/nextcloud/configuration/aai/
├─BROKEN─ https://b2access.eudat.eu/saml-idp/SLO-WEB (HTTP_400)```