Directory structure

Hi,
In the page “GitHub - ros2/ros2: The Robot Operating System, is a meta operating system for robots.” there are the following lines:

Create directory structure
To make the basic structure in the directory ~/example_ament_ws:
mkdir ~/ros2_ws
mkdir ~/ros2_ws/src
cd ~/ros2_ws

I don’t understand.
Should I make: “~/example_ament_ws/ros2_ws” and “~/example_ament_ws/ros2_ws/src”?
or, if I make: “~/ros2_ws” and “~/ros2_ws/src” what is the porpose of “~/example_ament_ws”?
Thanks in advance.
Luis Vital

This looks like an oversight when the tutorial was moved from its previous location. I fixed and simplified the steps in GitHub - ros2/ros2: The Robot Operating System, is a meta operating system for robots.