Documentation with Cargo Doc

Documentation with Cargo Doc\n\nRust supports documentation comments (///). Generate docs with cargo doc.\n\nrust\n/// Adds two numbers.\n///\n/// # Examples\n///\n/// \n/// let sum = add(2, 3);\n/// assert_eq!(sum, 5);\n/// \nfn add(a: i32, b: i32) -> i32 {\n a + b\n}\n\n\nOpen the generated docs in a browser: cargo doc --open.