Rust: How do you implement error handling with Result?

1fn divide(a: f64, b: f64) -> Result<f64, String> {
2    if b == 0.0 {
3        Err(String::from("Division by zero"))
4    } else {
5        Ok(a / b)
6    }
7}
8
9match divide(10.0, 2.0) {
10    Ok(result) => println!("Result: {}", result),
11    Err(e) => println!("Error: {}", e),
12}

1fn read_config() -> Result<Config, Box<dyn std::error::Error>> {
2    let content = std::fs::read_to_string("config.toml")?;
3    let config: Config = toml::from_str(&content)?;
4    Ok(config)
5}