Include mention of Dask and Ray in distributed example.

[mergenthaler]

It would be good to make more explicit the support of the AnyDateFrame paradigm. (Source: JS from Guac)

[AzulGarza]

hey @mmenchero, could you take this issue?

the task consists of based on the notebooks how to forecast - spark and how to do cross validation - spark:

• make a PR with exactly the same notebooks but using dask (you can see an example using statsforecast here)
• make a PR with exactly the same notebooks but using ray (you can see an example using statsforecast here)
• the notebooks should be lie in the same directory following the name convention there

[MMenchero]

Sure, I'm on it.

[elephaint]

Closing - I think this was solved in our docs update some time ago