[groff] 05/12: groff_mm(7): Document extension of heading levels.

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit 0098947c9ec1da0915057bee211c859f35a78e5f
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Mon Aug 1 20:01:20 2022 -0500

    groff_mm(7): Document extension of heading levels.
---
 contrib/mm/groff_mm.7.man | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/contrib/mm/groff_mm.7.man b/contrib/mm/groff_mm.7.man
index b2884f98c..f0f957fd7 100644
--- a/contrib/mm/groff_mm.7.man
+++ b/contrib/mm/groff_mm.7.man
@@ -138,6 +138,25 @@ are not recognized.
 Cut marks are not supported.
 .
 .
+.P
+DWB
+.I mm
+supported only seven levels of heading.
+.
+As a compatible extension,
+.I groff mm
+supports fourteen,
+introducing new registers
+.B H8
+through
+.BR H14 ,
+and affecting the interpretation of the
+.B HF
+and
+.B HP
+strings.
+.
+.
 .\" ====================================================================
 .SS Localization
 .\" ====================================================================