Add empty line in README.md

Signed-off-by: Bernd Hufmann <Bernd.Hufmann@ericsson.com>

README.md

diff --git a/README.md b/README.md
index d49278a..7c5de14 100644
--- a/README.md
+++ b/README.md
@@ -67,3 +67,4 @@
 [Maven standard directory layout]: https://maven.apache.org/guides/introduction/introduction-to-the-standard-directory-layout.html
 [p2 composite repository]: https://wiki.eclipse.org/Equinox/p2/Composite_Repositories_%28new%29
 
+