gnucash-on-flatpak master: Readme: Add links about OSTree

[Frank H.Ellenberger]

Updated	 via  https://github.com/Gnucash/gnucash-on-flatpak/commit/daac5f9d (commit)
	from  https://github.com/Gnucash/gnucash-on-flatpak/commit/c5da1f08 (commit)



commit daac5f9dec575a30dfee05c0552341f8588ae1aa
Author: Frank H. Ellenberger <frank.h.ellenberger at gmail.com>
Date:   Tue Jun 16 09:53:10 2020 +0200

    Readme: Add links about OSTree

diff --git a/README.md b/README.md
index 219173f..deb07ae 100644
--- a/README.md
+++ b/README.md
@@ -172,7 +172,8 @@ flatpak environment.
 Over time the local repo will start to accumulate plenty of branches and you
 may want to drop those you no longer use.
 
-There is no single command to do so. However as a flatpak repo is an ostree
+There is no single command to do so. However as a flatpak repo is an
+[ostree](https://en.wikipedia.org/wiki/OSTree)
 repo under the hood we can use ostree commands to clean up.
 
 The first step is to get an overview of branches in the repo
@@ -277,3 +278,4 @@ rather than 3.8.
 # Further Readings #
 - [Flatpak’s documentation](http://docs.flatpak.org/en/latest/)
 - [Flathub App Submission](https://github.com/flathub/flathub/wiki/App-Submission)
+- [OSTree Documentation](https://ostree.readthedocs.io/en/latest/)



Summary of changes:
 README.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)