Turtlebot3.md

@@ -54,7 +54,7 @@ The TurtleBot3 burger is the smallest turtlebot3 mobile robot. It is composed of
 * 3-axis magnetometer
 * 360° LiDAR
 
-</detail>
+</details>
 
 <details>
 <summary>Local environment and configuration (Click to expand)</summary>