added contributor to readme

Change-Id: I65e2e7f7af8f33689d42705ebcceaa0171dc9303
Signed-off-by: schneiders <stefan.schneider@uni-paderborn.de>
diff --git a/README.md b/README.md
index e471c9e..5fdccff 100755
--- a/README.md
+++ b/README.md
@@ -150,6 +150,7 @@
 * Eduard Maas (https://github.com/edmaas)
 * Malte Splietker (https://github.com/splietker)
 * Johannes Kampmeyer (https://github.com/xschlef)
+* Stefan Schneider (https://github.com/StefanUPB)
 
 ## License