I would like to edit turtlesim_teleop_key

edit

hi
i create pkg for you just do these step to compile it:

$ mkdir -p ~/catkin_ws/src
$ cd ~/catkin_ws/
$ catkin_make
$ cd ~/catkin_ws/src
$ git clone https://github.com/hamididari/ros_exa...
$ cd ..
$ catkin_make
these step compile the source code and you can run the app like this:
$source catkin_ws/devel/setup.bash
$rosrun ros_example_pkg ros_example_pkg_node
for changing the code just edit main.cpp in ros_example_pkg/src and make again