list_help_center_articles: take a row’s id (or
an article name) and read the whole article — its title, author description,
full body (markdown) and source url. Articles are global Qobra product docs.
Parameters
Body
Body
The Help Center article id (as returned in the id field by
list_help_center_articles) or an article name, matched as a case-insensitive
substring of the title. A name matching no — or more than one — article
raises a clear error; pass the id to disambiguate.