rustlings/exercises/variables/README.md

# Variables

In Rust, variables are immutable by default.
When a variable is immutable, once a value is bound to a name, you can’t change that value.
You can make them mutable by adding `mut` in front of the variable name.

## Further information

- [Variables and Mutability](https://doc.rust-lang.org/book/ch03-01-variables-and-mutability.html)