Revert 84a7736

[coretl]

Please can you revert:
84a7736

As it is causing:
https://github.com/DiamondLightSource/python-copier-template-example/actions/runs/7799041282/job/21268972938

Both the original and your change are equally valid (one does templating in Jinja, the other using f-strings at docs build time), but the original didn't expand to something that black reformats!