[ostree] README.md: Mention patches and test suite

[Colin Walters <walters src gnome org>]

commit 2731155950d58166edb43b6bcc3a23d5c65a8336
Author: Colin Walters <walters verbum org>
Date:   Sun Nov 30 13:23:06 2014 -0500

    README.md: Mention patches and test suite

 README.md |   23 +++++++++++++++++++++++
 1 files changed, 23 insertions(+), 0 deletions(-)
---
diff --git a/README.md b/README.md
index 6e5d8b5..50273c0 100644
--- a/README.md
+++ b/README.md
@@ -8,3 +8,26 @@ of both.
 For more information, see:
 
 https://live.gnome.org/Projects/OSTree
+
+Submitting patches
+------------------
+
+You can:
+
+ 1. Send mail to ostree-list gnome org, with the patch attached
+ 1. Submit a pull request against https://github.com/GNOME/ostree
+ 1. Attach them to https://bugzilla.gnome.org/
+
+Please look at "git log" and match the commit log style.
+
+
+Running the test suite
+----------------------
+
+Currently, ostree uses https://wiki.gnome.org/GnomeGoals/InstalledTests
+To run just ostree's tests:
+
+    ./configure ... --enable-installed-tests
+    gnome-desktop-testing-runner -p 0 ostree/
+
+