diff --git a/Robust-Graph-Optimization.md b/Robust-Graph-Optimization.md
index e3add89..1d0439e 100644
--- a/Robust-Graph-Optimization.md
+++ b/Robust-Graph-Optimization.md
@@ -3,6 +3,7 @@
   * [ROS](#ros)
  * [Example](#example)
  * [Issues](#issues)
+
 ***
 
 ## Introduction