Change timer every 10h, and add note for gortr plus slurm file

update.sh

@@ -50,13 +50,14 @@ echo "## Notes
   - [bird_route_dn42.conf](bird_route_dn42.conf)
   - [bird4_route_dn42.conf](bird4_route_dn42.conf)
   - [bird6_route_dn42.conf](bird6_route_dn42.conf)
-- These files are [Routinator][2] compatible:
+- These files are [Routinator][2] and [gortr][3] ([src][6]) compatible:
   - [export_rfc8416_dn42.json](export_rfc8416_dn42.json) _(SLURM standard, format specified in [RFC 8416][4])_
 - These files are [gortr][3] compatible:
   - [export_dn42.json](export_dn42.json)
 
-Note the gortr file is DateTime stamped only, it is not signed with any certificaty. So you will need to add
-\`-verify=false\` as a runtime parameter when loading the cache file.
+Note the gortr source file is DateTime stamped only, it is not signed with any certificaty. So you will need to add
+\`-verify=false\` as a runtime parameter when loading the cache file. Alternatively, use gortr with a slurm file
+instead (e.g. `-slurm export_rfc8416_dn42.json`) as a command-line parameter.
 
 ## [Last merge commit][0] at [dn42 registry][1]
 
@@ -72,7 +73,7 @@ $(git -C ../registry/ log -n 1 --date=iso8601 --merges |
 You can setup a [cronjob][5] to check in with updates to the ROA files listed
 above on regular intervals.
 
-Currently the ROA files published here is refreshed every 6th hour if
+Currently the ROA files published here is refreshed every 10th hour if
 updates has been made to the [DN42 registry][1].
 
 ## Misc statistics
@@ -87,6 +88,7 @@ updates has been made to the [DN42 registry][1].
 [3]: https://github.com/cloudflare/gortr
 [4]: https://tools.ietf.org/html/rfc8416
 [5]: doc/crontab.md
+[6]: https://github.com/cloudflare/gortr/#configure-filters-and-overrides-slurm
 " > roa/README.md
 
 # computer checksums