diff --git a/README.md b/README.md
index 2974d29..6a7794d 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,11 @@ das systemd-ding legt man am besten in /etc/systemd/system/
 mit den systemctl-befehlen muss man die "unit" dann noch starten.
 
 further reading / sources :
+
 https://linuxacademy.com/blog/geek/creating-an-irc-bot-with-python3/
+
 http://pi4j.com/pins/model-b-rev1.html
+
 http://razzpisampler.oreilly.com/ch07.html
+
 http://wiringpi.com/the-gpio-utility/