diff --git a/README.md b/README.md
index bf03f48..81ca9b8 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,6 @@ Arduino support libraries and demo code for Didels Witty 2WD balancing robot.
 
 
 ## Documents
-[Witty Quick Start Guide](docs/WittyQuickStartGuide.pdf)
-[Witty Specs (PDF)](docs/WittySpecs.pdf)
-[Witty Balancing Robot](docs/WittyBalancingRobot.md)
+[Witty Quick Start Guide](docs/WittyQuickStartGuide.pdf)  
+[Witty Specs (PDF)](docs/WittySpecs.pdf)  
+[Witty Balancing Robot](docs/WittyBalancingRobot.md)