Update README.md

README.md

@@ -17,7 +17,6 @@ Install modelcar basic packages, because we need its odometry package
 wget http://ftp.imp.fu-berlin.de/pub/autonomos/data/modelcar/software-packages/v3/kinetic/amd64/modelcar-basic-packages.deb
 sudo dpkg -i modelcar-basic-packages.deb
 source /opt/ros/modelcar/catkin_ws/install/setup.bash
-# You can add this last line to you ~/.bashrc
 
 ```
 
@@ -30,7 +29,7 @@ mkdir -p ~/catkin_ws/src
 cd ~/catkin_ws
 catkin_make
 source ~/catkin_ws/devel/setup.bash
-# You can add this last line to you ~/.bashrc
+# You should add this last line to your ~/.bashrc file
 ```
 
 
@@ -43,6 +42,8 @@ git clone https://gitlab.iri.upc.edu/seat_adc/seat_car_simulator.git
 rosdep install -i --from-paths seat_car_simulator
 roscd; cd ..
 catkin_make
+export GAZEBO_MODEL_PATH=`rospack find seat_car_gazebo`/models:$GAZEBO_MODEL_PATH
+# You should add this last line to your ~/.bashrc file
 ```
 
 ## Running