gnucash maint: Update README file regarding pull request policy

[Geert Janssens]

Updated	 via  https://github.com/Gnucash/gnucash/commit/293b43dc (commit)
	from  https://github.com/Gnucash/gnucash/commit/5d69ec7d (commit)



commit 293b43dcedc36e9a9c6469b36c3032724d1f824b
Author: Geert Janssens <janssens-geert at telenet.be>
Date:   Tue May 31 13:09:44 2016 +0200

    Update README file regarding pull request policy



Summary of changes:
 README | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)