Turtlebot3.md

@@ -22,13 +22,9 @@ The TurtleBot3 version adopts ROBOTIS smart actuator DYNAMIXEL for driving. Turt
   * [Control robot](#control-robot)
 * [TurtleBot3 Administration](#turtlebot3-administration)
 
-<details>
-<summary>Click to expand</summary>
 
 # Working with the TurtleBot3 Burger
 
-</details>
-
 The TurtleBot3 burger is the smallest turtlebot3 mobile robot. It is composed of 2 DYNAMIXEL servomotors (one for each wheel), 1 OpenSource control card (OpenCR ARM Cortex-M7), 1 Raspberry Pi3, sensors for the navigation with 360° LiDAR.
 
 ![](./images/turtlebot3-burger1.jpg)
@@ -65,6 +61,9 @@ You can use the ROS distribution and softwares provided in the virtual machine a
 
 Given this environment, you can use the robots in the roscore environment already deployed on [different machines and network infrastructures](/Use_turtlebot3_eduroam). In the following, use the IPs of the different machines to configure the environment variables required to run ROS from you virtual machine.
 
+<details>
+<summary>Click to expand Getting started using ROS 1</summary>
+
 ## Getting started using ROS 1
 
 ### Configuring
@@ -137,6 +136,8 @@ Define a specific namespace for each robot and initialize the *multi_robot_name*
 (Remote PC)>[ROS_NAMESPACE=/myspace] roslaunch turtlebot3_teleop turtlebot3_teleop_key.launch
 ```
 
+</details>
+
 ## Getting started using ROS 2
 
 TODO