gnucash-docs maint: Release Documentation for GnuCash 3.9

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash-docs/commit/e58d1cda (commit)
	from  https://github.com/Gnucash/gnucash-docs/commit/1cb56539 (commit)



commit e58d1cda1f41af542693569e42673fe762038e65
Author: John Ralls <jralls at ceridwen.us>
Date:   Sat Mar 28 13:18:18 2020 -0700

    Release Documentation for GnuCash 3.9



Summary of changes:
 CMakeLists.txt |  2 +-
 NEWS           | 22 ++++++++++++++++++++--
 2 files changed, 21 insertions(+), 3 deletions(-)