website: Update the release procedures

Change-Id: Ie42e1b4a7e9dce9ed26530aa9dd94bb09e079203
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5-website/+/54725
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Tested-by: Bobby Bruce <bbruce@ucdavis.edu>
1 file changed