Add Rust Automod VSCode extension to Project/Tooling Updates

[cainhooow]

This PR adds a new entry to the Project/Tooling Updates section of the upcoming This Week in Rust newsletter.

The entry highlights Rust Automod, a Visual Studio Code extension that automates the management of mod.rs files in Rust projects.

About Rust Automod

Rust Automod helps Rust developers by:

Automatically creating mod.rs files when new Rust files are added to a folder.

Adding new module declarations (mod or pub mod) automatically.

Updating parent/child mod.rs files when new folders or files are created.

Removing module declarations when files are deleted.

Supporting project-specific configuration through .rautomod.

Providing optional sorting, linting, and IntelliSense for .rautomod.

Offering a command to hide/show mod.rs files in VSCode Explorer for a cleaner workspace.

🔗 Extension link: Rust Automod VSCode Extension

[mariannegoldin]

Thanks! Approved with format change.