gnucash-on-flatpak master: Add instructions for pruning older refs from the flatpak repo

[Geert Janssens]

Updated	 via  https://github.com/Gnucash/gnucash-on-flatpak/commit/9c407024 (commit)
	from  https://github.com/Gnucash/gnucash-on-flatpak/commit/b2079858 (commit)



commit 9c407024d6625f567982ac77982dbb89e68d9867
Author: Geert Janssens <geert at kobaltwit.be>
Date:   Thu Jan 16 22:13:06 2020 +0100

    Add instructions for pruning older refs from the flatpak repo



Summary of changes:
 README.md | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)