README.md refers to decommissioned isisdist.astrogeology.usgs.gov

[foobarbecue]

Description

ISIS has switched from distributing kernels using rsync modules at isisdist.astrogeology.usgs.gov to hosting in data sources specified in rclone.conf, primarily an Amazon S3 bucket called asc-isisdata. isisdist.astrogeology.usgs.gov was disabled in November 2022, but it's still referred to on the ISIS3 README.md:

ISIS3/README.md

Lines 415 to 425 in c3d975e

	### ISIS SPICE Web Service
	ISIS can now use a service to retrieve the SPICE data for all instruments ISIS supports via the internet. To use this service instead of your local SPICE data, click the WEB check box in the spiceinit program GUI or type spiceinit web=yes at the command line. Using the ISIS SPICE Web Service will significantly reduce the size of the downloads from our data area. If you want to use this new service, without having to download all the SPICE data, add the following argument to the mission-specific rsync command:
	--exclude='kernels'
	For example:
	<pre>
	cd $ISISDATA
	rsync -azv <b>--exclude='kernels'</b> --delete --partial isisdist.astrogeology.usgs.gov::isisdata/data/cassini .

Possible Solution

Replace outdated information with a historical note explaining that isisdist.astrogeology.usgs.gov is no more . Better, bring isisdist.astrogeology.usgs.gov back up and set it up so that if a user tries to use it they get a notice pointing to the new data source (S3 bucket). The are references to isisdist.astrogeology.usgs.gov in all sorts of software (some of mine!) and documentation all over the web.

[ellequelle]

I was just about to open an issue about this! I can remove the rsync references from the readme.

[foobarbecue]

This appears fixed.