Derive API tutorial refers to Builder API concepts rather than the derive API attributes

[edmorley]

Please complete the following tasks

• I have searched the discussions
• I have searched the open and rejected issues

Rust Version

N/A

Clap Version

3.1.0

Minimal reproducible code

N/A

Steps to reproduce the bug with the above code

1. Visit https://github.com/clap-rs/clap/blob/v3.1.0/examples/tutorial_derive/README.md#configuring-the-parser
2. Read the first few sections and compare the readme explanations to the linked code

Actual Behaviour

The tutorial text says:

You use the Command the start building a parser.

...and later:

You can use command!() to fill these fields in from your Cargo.toml file.

(and so on, there are several more similar usages)

These are the builder API, not the derive API.

Expected Behaviour

I would instead expect the derive tutorial to mention the actual derive attributes seen in the example:
https://github.com/clap-rs/clap/blob/v3.1.0/examples/tutorial_derive/02_apps.rs

...such as #[derive(Parser)], #[clap(name = "MyApp")] etc.

Additional Context

No response

Debug Output

No response

[epage]

Thanks for letting us know of spots we missed!

[edmorley]

Thank you for the fast fix! :-)