Use the @dircategory command to specify a category
for the manual. Here are a few examples of category names:
Basics Text creation and manipulation Archiving Compression Database Editors Emacs Email Graphics Localization Network applications Printing Science Software development Software libraries Version control
@dircategory commands are usually followed by a
@direntry blocks, which are used by install-info.
See Installing Info Directory Files, for details.
The first @dircategory command in a manual is the category for
the entire manual. Subsequent uses of @dircategory set the category
for following @direntry blocks only.