Update index.md

[chrisb13]

Few instruction tweaks

[github-actions]

PR Preview
🚀 Preview of PR head commit e99573e deployed to https://access-nri.github.io/access-cm3-config-docs/pr-previews/7
2025-11-03 10:01 AEDT
Preview generated through the Deploy to GitHub Pages workflow run 19019411362.

[anton-seaice]

This review should go to the cm3 team - probably @kieranricardo

[chrisb13]

Ok sure. I suggested you because there's a very similar change in the OM3 one, so it seemed easiest to do both at once.

[chrisb13]

@Whyborn has kindly offered to review :)

[chrisb13]

Thanks @Whyborn, I think I've now addressed your suggestions (via your proposed edits) and e99573e.

Please re-review.

Feel free to say whether you think the text here is unclear too help-us-evaluate-and-improve-applications-of-om3:
https://access-om3-configs.access-hive.org.au/contributing/#help-us-evaluate-and-improve-applications-of-om3
(@anton-seaice reviewed)