Update installros.sh

Author: ANI717

installros.sh

@@ -5,6 +5,7 @@ sudo apt-key adv --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-key C1CF
 sudo apt-get update
 sudo apt-get upgrade -y
 sudo apt install -y python-rosdep python-rosinstall-generator python-wstool python-rosinstall build-essential cmake libboost-all-dev
+pip install empy
 sudo rosdep init
 rosdep update
 mkdir -p ~/ros_catkin_ws
@@ -17,4 +18,4 @@ git clone https://github.com/ros/rosbag_migration_rule
 cd ~/ros_catkin_ws
 rosdep install -y --from-paths src --ignore-src --rosdistro melodic -r --os=debian:buster
 sudo ./src/catkin/bin/catkin_make_isolated --install -DCMAKE_BUILD_TYPE=Release --install-space /opt/ros/melodic
-echo "source /opt/ros/melodic/setup.bash" >> ~/.bashrc
+echo "source /opt/ros/melodic/setup.bash" >> ~/.bashrc