`Cargo.toml` files not present with examples.

[Tauheed-Elahee]

I am trying to follow examples on https://rust-lang-nursery.github.io/rust-cookbook/

And in particular the following example:
https://rust-lang-nursery.github.io/rust-cookbook/web/clients/requests.html

But there is no Cargo.toml files associated with the example.

Please provide Cargo.toml files for all projects so that readers can actually build and run the projects.