[groff] 70/72: doc/groff.texi: Revise intro to chapter 4.

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit 708831b7c0f73d11c69214591064d8f685cdd12e
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Sun Oct 23 20:01:00 2022 -0500

    doc/groff.texi: Revise intro to chapter 4.
---
 doc/groff.texi | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/doc/groff.texi b/doc/groff.texi
index 44e255871..7f174f3ca 100644
--- a/doc/groff.texi
+++ b/doc/groff.texi
@@ -2155,14 +2155,16 @@ to changing the appearance of section headers.
 @cindex major macro package
 @cindex package, macro, major
 @cindex macro package, major
+
+This chapter surveys the ``major'' macro packages that come with
+@code{groff}.  One, @file{ms}, is presented in detail.
+
 @cindex full-service macro package
 @cindex package, macro, full-service
 @cindex macro package, full-service
-
-This chapter documents the major macro packages that come with
-@code{groff}.  Such packages are also sometimes described as
-@dfn{full-service} due to the breadth of features they provide and
-because more than one cannot be used by the same document; for example
+Major macro packages are also sometimes described as @dfn{full-service}
+due to the breadth of features they provide and because more than one
+cannot be used by the same document; for example
 
 @Example
 groff -m man foo.man -m ms bar.doc
@@ -2176,6 +2178,13 @@ arguments; the above (failing) sample is thus reordered 
to
 groff -m man -m ms foo.man bar.doc
 @endExample
 
+Many auxiliary, or ``minor'' macro packages are also available.  They
+may in general be used with any full-service macro package and handle a
+variety of tasks from character encoding selection, to language
+localization, to inlining of raster images.  See the
+@cite{groff_tmac@r{(5)}} man page for a list.  Type @samp{man
+groff_tmac} at the command line to view it.
+
 @menu
 * man::
 * mdoc::