doc/hooks/meson.section.md: fix syntax to unbreak CI

[ghost]

Description of changes

CI for staging-next is broken:

• https://github.com/NixOS/nixpkgs/actions/runs/6661277047/job/18103889914?pr=263535

This fixes it.

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 23.11 Release Notes (or backporting 23.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

[ghost]

Fixes

• staging-next 2023-10-26 #263535

[mweinelt]

The manual on staging-next is still broken and this looks like it could be the fix. Why did you close the PR?

[vcunat]

Should be resolved by 0fdb1ee

[ghost]

The manual on staging-next is still broken and this looks like it could be the fix. Why did you close the PR?

I think it got fixed on master and the github action that merges master to staging brought the fix over. When I rebased this branch I saw a merge conflict and figured somebody else had beat me to it. 😄