contributing: nixos: remove link to pad, add link to lila

we don't use the pad anymore (we now use the project board)

contribute/nixos.md

@@ -12,10 +12,10 @@ For real-time conversations, join the [`#reproducible-builds:nixos.org`](https:/
 
 ### Project Status
 
+- **Website**: Check [reproducible.nixos.org](https://reproducible.nixos.org) for general information and status updates.
 - **Project Board**: To keep track of ongoing tasks and open issues concerning
   reproducible builds, view our [GitHub Project Board](https://github.com/orgs/NixOS/projects/30).
 - **Pull Requests & Issues**: Browse current [pull requests](https://github.com/NixOS/nixpkgs/pulls?q=is%3Aopen+is%3Apr+label%3A%226.topic%3A+reproducible+builds%22) and [issues](https://github.com/NixOS/nixpkgs/issues?q=is%3Aopen+is%3Aissue+label%3A%226.topic%3A+reproducible+builds%22) labeled with "reproducible builds."
-- **Internal Resources**: Our internal website, [reproducible.nixos.org](https://reproducible.nixos.org), provides additional information and status updates. More details on specific problems can be found on [this pad](https://pad.sfconservancy.org/p/nixos-reproducible-builds-progress).
 
 ### Reporting Issues
 
@@ -23,4 +23,5 @@ Use the [issue template](https://github.com/NixOS/nixpkgs/issues/new?assignees=&
 
 ### Additional Projects
 
+- [lila](https://github.com/JulienMalka/lila)
 - [trustix](https://github.com/nix-community/trustix)