A more thorough explanation:

Paratitla (par-ə-tIt-lə), n. pl. [Law Latin “next to the title”] refers to notes or abstracts that are added before the titles of law. These notes provide a summary of the contents of the law.

• A paratitla may be added to a legal document to provide a brief overview of the law.
• In Roman and civil law, paratitla were commonly used to help people understand the contents of legal documents.

These examples illustrate how paratitla were used to provide a summary of the contents of legal documents. They were helpful in making the law more accessible to people who may not have had a legal background.