Stale hyperlinks in the ARM

From bind-users:

https://bind9.readthedocs.io/en/v9.18.19/dnssec-guide.html

there's a link to

https://stats.research.icann.org/dns/tld_report/

which is no longer valid. New data seems to be here:

https://ithi.research.icann.org/ ITHI == idenitifier technologies health indicators how many TLDs support DNSSEC ? https://ithi.research.icann.org/graph-m7.html