SDSS example uses inaccessible file

[kyleaoman]

The example with a fits file (SDSS DR16) would be better if the input file was made available - this could be either exposing the current file or choosing a different one that can be made available. (I actually tried to retrieve it from the Munich systems just to see if I could run the example but don't have permission on /virgotng/mpia).

[kyleaoman]

(But this is mitigated by the mentions in the docs that FITS support is a work in progress.)

[cbyrohl]

Good point. The SDSS DR16 redshift and classification file "specObj-dr16.fits " can be found here, please give it a try. Thanks!