gnucash maint: Update version in README, add Boost::program_options to dependencies.

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash/commit/3d93c7ed (commit)
	from  https://github.com/Gnucash/gnucash/commit/0ca468e0 (commit)



commit 3d93c7edf9b85e6e4185415f805ca0130f0ada75
Author: John Ralls <jralls at ceridwen.us>
Date:   Tue Sep 22 12:35:59 2020 -0700

    Update version in README, add Boost::program_options to dependencies.

diff --git a/README b/README
index afbceb69f..349142647 100644
--- a/README
+++ b/README
@@ -1,7 +1,7 @@
 ############################################################
-          GnuCash 3.x README file.
+          GnuCash README file.
 
-The current stable series is GnuCash 3.x.
+The current stable series is GnuCash 4.x.
 ------------------------------------------------------------
 
 ##################
@@ -37,9 +37,7 @@ https://www.gnucash.org/download
 Dependencies
 ------------
 
-The following packages are required to be installed to run GnuCash:
-
-[see README.dependencies]
+Please see README.dependencies for current build dependencies.
 
 The optional online stock and currency price retrieval feature requires Perl.
 This is generally already installed on Gnu/Linux and *BSD, and MacOS.
diff --git a/README.dependencies b/README.dependencies
index 6c18781ce..82653e42d 100644
--- a/README.dependencies
+++ b/README.dependencies
@@ -67,7 +67,8 @@ Libraries/Deps
   ICU                                           International Components for
                                                 Unicode
   boost                 1.67.0                  All headers plus date_time,
-                                                filesystem, locale, and
+                                                filesystem, locale,
+                                                program_options, and
                                                 regex libraries.
                                                 locale and regex libs must be
                                                 built with ICU support.



Summary of changes:
 README              | 8 +++-----
 README.dependencies | 3 ++-
 2 files changed, 5 insertions(+), 6 deletions(-)