Merge pull request #11 from nzlz/master

Update installation instructions

README.md

@@ -18,7 +18,7 @@ This repository provides Gazebo ROS 2.0 support for [MARA](https://acutronicrobo
 
  - [gazebo_ros_pkgs](https://github.com/ros-simulation/gazebo_ros_pkgs) branch: `ros2`.
  - [HRIM](https://github.com/erlerobot/HRIM/).
- - [control_msgs](https://github.com/ros-controls/control_msgs) branch: `bouncy-devel`.
+ - [control_msgs](https://github.com/erlerobot/control_msgs) branch: `crystal`.
  - [image_common](https://github.com/ros-perception/image_common) branch: `ros2`.
  - [vision_opencv](https://github.com/ros-perception/vision_opencv) branch: `ros2`
  - sudo apt install python3-numpy
@@ -39,10 +39,10 @@ Create a ROS workspace, for example:
 ```bash
 mkdir -p ~/ros2_mara_ws/src
 cd ~/ros2_mara_ws/src
-git clone https://github.com/AcutronicRobotics/MARA -b ros2
+git clone https://github.com/AcutronicRobotics/MARA
 git clone https://github.com/ros-simulation/gazebo_ros_pkgs -b ros2
 git clone https://github.com/erlerobot/HRIM/
-git clone https://github.com/ros-controls/control_msg -b bouncy-devel
+git clone https://github.com/erlerobot/control_msgs -b crystal
 git clone https://github.com/ros-perception/image_common -b ros2
 git clone https://github.com/ros-perception/vision_opencv -b ros2
 sudo apt install python3-numpy
@@ -68,6 +68,7 @@ source /opt/ros/kinetic/setup.bash
 Right now you can compile the code:
 
 ```bash
+source /opt/ros/crystal/setup.bash
 cd ~/ros2_mara_ws && colcon build --merge-install  
 ```