Figure out data access for ZTF images

Is ZTF accessible via SIA v1?  is it something else?  How does one access ZTF images?  Is the COSMOS tutorial helpful in figuring this out?

- make a tutorial showing this for irsa-tutorials
- suggest edits to the SIA v1 access page https://irsa.ipac.caltech.edu/ibe/sia_v1.html
- suggest edits to this general data access page: https://irsa.ipac.caltech.edu/docs/program_interface/api_images.html