Manual does not specify who to cc when submitting a patch

As it took me too long to create my backup job running using borgbackup, I decided to try to improve the documentation.

In the I followed the link to the contributing page

Then I opened the bug report borgbackup: Improve documentation · Issue #83525 · NixOS/nixpkgs · GitHub

As my patch was ready I submitted the pull request

But I failed to follow the suggestion from then manual in chapter “19.2. Submitting changes” where they suggest

What is meant by “the message”?

the message here refers either to PR description or a comment. Either action will create a github notification for the individual (and an email, if they have that enabled)