Update Creating-Launch-Files.rst

[andanders]

how to get launch file included in the build.
The tutorial does not show how to do this. As a result the command in the tutorial ros2 launch <package_name> <launch_file_name> does not work.

[christophebedard]

Thanks for the PR. I agree that something is missing in this section, but I don't think we should add this here. This section calls ros2 launch with the path to the launch file, instead of the package name and the launch file name: no package is involved.

There is a note below about using ros2 launch <package_name> <launch_file_name>. It refers to the "Creating a package" tutorial, which is useful to explain how to create packages, but it indeed doesn't explain how to make a launch file part of a package so that it can be found with ros2 launch <package_name> <launch_file_name>. This is explained in the "Integrating launch files into ROS 2 packages" tutorial, more specifically in the "Creating the structure to hold launch files" section. I think the note should link to this section. Could you make this change?

Also, could you instead target the rolling branch instead of the humble branch? Then we can apply the change to other branches, including humble.

[andanders]

Hi Christophe, the other tutorial you mention uses Glob to copy all files, so my specific example in this PR is redundant.
Since the tutorial already exists I feel that this PR is irrelevant. I will close it if you agree.

[christophebedard]

Yeah, it's redundant to add this here, but it would be nice to just add a link to the "Creating the structure to hold launch files" section in the .. note:: that has the ros2 launch <package_name> <launch_file_name> command below.