Certain child theme demos exhibit an archive title and description at the beginning of the archive pages, as visible in the picture below.

Navigate to Posts > Categories > your chosen category or Posts > Tags > your selected tag to include a title and description on your archive page, as outlined below.

1. Archive Headline: Input a custom title if preferred. To display the default title, leave this field empty.
2. Archive Intro Text: Include a concise introduction for the category or tag.

Remember to click the Update button at the bottom of the screen (not displayed here) to save your configurations.