gnucash-docs master: Release GnuCash Documentation 3.903.

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash-docs/commit/b341bb7e (commit)
	from  https://github.com/Gnucash/gnucash-docs/commit/f2e859cc (commit)



commit b341bb7e7898396674d14005fb7d5457758e4a24
Author: John Ralls <jralls at ceridwen.us>
Date:   Sun May 31 14:52:47 2020 -0700

    Release GnuCash Documentation 3.903.



Summary of changes:
 CMakeLists.txt             |  2 +-
 NEWS                       | 17 +++++++++++++++++
 configure.ac               |  2 +-
 docbook/gnc-docbookx.dtd   |  6 +++---
 guide/C/gnucash-guide.xml  | 12 ++++++++++--
 guide/de/gnucash-guide.xml |  8 ++++++++
 guide/pt/gnucash-guide.xml |  8 ++++++++
 7 files changed, 48 insertions(+), 7 deletions(-)