[LyX/master] Additional.lyx: further fixes #7 (last one)

[Juergen Spitzmueller]

commit 7eafea43e391ad94c3203645fb3dfda37efb81da
Author: Juergen Spitzmueller <spitz at lyx.org>
Date:   Sat Jan 28 16:18:48 2023 +0100

    Additional.lyx: further fixes #7 (last one)

 lib/doc/Additional.lyx | 2665 ++++++++++++++++++++++++++++++++++++++++++++----
 1 files changed, 2450 insertions(+), 215 deletions(-)