link to spreadsheet for host retirement

tsa/howto/retire-a-host.mdwn

@@ -9,5 +9,6 @@
  7. on pauli: `read host ; puppet node clean $host.torproject.org && puppet node deactivate $host.torproject.org`
  8. grep the `tor-puppet` repo for the host (and maybe its IP addresses) and clean up
  9. clean host from `tor-passwords`
+ 10. remove from the machine from the [Nextcloud spreadsheet](https://nc.riseup.net/remote.php/webdav/tpa/Tor%20VM%20Hosts.xlsx)
 
 TODO: deal with backups, see <https://trac.torproject.org/projects/tor/ticket/30880>.