Instructions https://docs.google.com/document/d/1C7iXEyxpRHfdLNLPw30ktIJhi-xvFPn-Bk_RU8dpcD0/edit#heading=h.bburgcg0vn3p
Note, this repository does not include key repositories you will need: build/, log/, install/, and include/
You will need to run colcon build on the workspace directory (ros-intro-project) and the package dirctories in the src/ folder to get these directories and be able to build your code.
Follow the instructions document for integrating your code and changes into the package.xml and CMakeLists.txt