gnat-gps-doc 19.2-3ubuntu1 (amd64 binary) in ubuntu focal

 GNAT Programming Studio is a complete integrated development environment
 that gives access to a wide range of tools and integrates them smoothly.
 .
 This package contains the documentation in HTML and PDF formats.
 This documentation consists of:
  - the GPS Tutorial: building Hello, World with the GPS
  - a User's Guide: using the GPS for multi-language projects
  - a Programmer's Manual: extending the GPS with new modules
  - an user's guide for the gnatdoc command line tool