How to add descriptive text in Job Offer?

Content

When a candidate sees a Job Offer we struggle to locate where to configure additional descriptive text to show.

What are the options for adding such descriptive text and where is it done? Ideally we want to present candidate with a clear statement on what he/she accepts as part of accepting the job offer (e.g. also accepting all attachments included).

See the screenshot for an example that we want to achieve, but cannot seem to.