The docs.rs documentation

Every published crate on crates.io gets its documentation generated and hosted on https://docs.rs/. If the crate's documentation hasn't been published by anyone anywhere online, you'll find it there as long as it has been published. With crates.io and rust-lang.org, it's one of the most known places of the Rust ecosystem, so bookmark it and doesn't lose it!

Here's a screenshot of what docs.rs looks like:

Figure 2.3