Make prerequisites more verbose

content/actions/use-cases-and-examples/building-and-testing/building-and-testing-rust.md

@@ -13,7 +13,7 @@ shortTitle: Build, test & Publish with Rust
 
 ## Introduction
 
-This guide shows you how to build, test, and publish a Rust package.
+This guide shows you how to build, test, and publish a Rust project.
 
 {% data variables.product.prodname_dotcom %}-hosted runners have a tools cache with preinstalled software, which includes the dependencies for Rust. For a full list of up-to-date software and the preinstalled versions of Rust, see [AUTOTITLE](/actions/using-github-hosted-runners/about-github-hosted-runners#preinstalled-software).
 
@@ -23,6 +23,8 @@ You should already be familiar with YAML syntax and how it's used with {% data v
 
 We recommend that you have a basic understanding of the Rust language. For more information, see [Getting started with Rust](https://www.rust-lang.org/learn).
 
+If you are planning on publishing to a registry, you should have an understanding of [Publishing on crates.io](https://doc.rust-lang.org/cargo/reference/publishing.html) and require metadata in the [manifest](https://doc.rust-lang.org/cargo/reference/manifest.html) in the Cargo.toml of the project you want to publish, see [foursixnine/cndk8](https://github.com/foursixnine/cndk8/blob/d889953c58648e59e2898f62e4d71d2067faea00/Cargo.toml#L9) as a reference.
+
 ## Using a Rust workflow template
 
 {% data reusables.actions.workflow-templates-get-started %}