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# Document your crate's feature flags
[](https://crates.io/crates/document-features)
This crate provides a macro that extracts documentation comments from Cargo.toml
To use this crate, add `#![doc = document_features::document_features!()]` in your crate documentation.
The `document_features!()` macro reads your `Cargo.toml` file, extracts feature comments and generates
a markdown string for your documentation.
Use `## ` and `#! ` comments in your Cargo.toml to document features, for example:
```toml
[dependencies]
document-features = "0.2"
## ...
[features]
## The foo feature enables the `foo` functions
foo = []
## The bar feature enables the [`bar`] module
bar = []
#! ### Experimental features
#! The following features are experimental
## Activate the fusion reactor
fusion = []
```
These comments keep the feature definition and documentation next to each other, and they are then
rendered into your crate documentation.
## Contributions
Contributions are welcome. We accept pull requests and bug reports.
## License
MIT OR Apache-2.0