Add section on AI use to BOSC submission page

[nlharris]

We should add a section on AI use to https://www.open-bio.org/events/bosc-2026/submit/, at a minimum pointing to the ISCB guidelines (https://www.iscb.org/about-iscb/policy-statements-bylaws-and-legal-documents/acceptable-use-of-large-language-models-policy).