Update README.md

README.md

@@ -5,7 +5,8 @@
 [![GitHub](https://img.shields.io/github/license/carla-simulator/ros-bridge)](https://github.com/carla-simulator/ros-bridge/blob/master/LICENSE)
 [![GitHub release (latest by date)](https://img.shields.io/github/v/release/carla-simulator/ros-bridge)](https://github.com/carla-simulator/ros-bridge/releases/latest)
 
- This ROS package is a bridge that enables two-way communication between ROS and CARLA. The information from the CARLA server is translated to ROS topics. In the same way, the messages sent between nodes in ROS get translated to commands to be applied in CARLA.
+ The official [ros-bridge](https://github.com/carla-simulator/ros-bridge) is modified.   
+ This ros package enables autonomous driving using Autoware in addition to the basic function of the official [ros-bridge](https://github.com/carla-simulator/ros-bridge) package (communication between ros and carla)
 
 ![control_carla_universe](https://user-images.githubusercontent.com/38074802/187683146-2b8d492b-6997-4460-af1a-66ea364c90ed.gif)
 
@@ -25,24 +26,26 @@
 * [CARLA Installation](https://carla.readthedocs.io/en/latest/start_quickstart/) (Debian installation)
 * carla-ros-bridge (this repo)
   ```bash
+  mkdir -p ros2_ws/src
+  cd ros2_ws/src
   git clone [email protected]:kuriatsu/ros-bridge.git --recursive
   ```
 * [derived_object_msgs](https://github.com/astuff/astuff_sensor_msgs) (branch 3.3.0)
   ```bash
-  cd ros-bridge/src
+  cd ros2_ws/src
   git clone [email protected]:astuff/astuff_sensor_msgs.git
   cd astuff_sensor_msgs
   git checkout -b 3.3.0 refs/tags/3.3.0
   ```
 * [autoware containts](https://bitbucket.org/carla-simulator/autoware-contents/src/master/maps/)  
-  1. Download maps (y-axis inverted version) 
+  1. Download maps (y-axis inverted version) to arbitaly location
   2. Change names. (point_cloud/Town01.pcd -> Town01/pointcloud_map.pcd, vector_maps/lanelet2/Town01.osm -> Town01/lanelet2_map.osm)
 
 * Change file path at `carla_spawn_objects/carla_spawn_objects.py L49` as shown in first paragraph of Fix Log.
 
 ## build
 ```bash
-cd ros-bridge
+cd ros2_ws
 colcon build --symlink-install
 ```
 # Getting start
@@ -51,6 +54,7 @@ colcon build --symlink-install
 ```bash
 /opt/carla/CarlaUE4.sh
 python3 /opt/carla/PythonAPI/util/config.py -m Town10
+# optional
 python3 /opt/carla/PythonAPI/examples/generate_traffic.py -n 10 -w 20
 ```