Add more sites to the list please

[pmahnke]

• https://cloud-init.io
• https://mir-server.io
• https://dqlite.io
• https://microk8s.io
• https://netplan.io
• https://microstack.run
• https://multipass.run
• https://maas.io
• https://jaas.ai
• https://juju.is
• https://snapcraft.io
• https://vanillaframework.io
• https://anbox-cloud.io
• https://conjure-up.io
• https://charmed-osm.com
• https://kubeflow-news.com
• https://etclite.io

thanks!