Ozone integration to spark docs all returning 404

[romosa]

Hi,

We are currently working on integrating Apache Ozone with Kubeflow Spark Operator.

Last week, we were able to view some documentations but today all of them return 404.

These links from google search all return 404.
https://ozone.apache.org/docs/user-guide/integrations/spark
https://ozone.apache.org/docs/edge/recipe/index.html
https://ozone.apache.org/docs/current/recipe.html
https://ozone.apache.org/docs/2.0.0/recipe/sparkozonefsk8s.html

Any idea where the documentations got moved?