# mdbook-chapter-number ![CI](https://github.com/Mura-Mi/mdbook-chapter-number/actions/workflows/ci.yml/badge.svg) [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT) This is a [mdbook](https://rust-lang.github.io/mdBook/) preprocessor that adds chapter numbers to the each page header. ## Usage You can install this preprocessor with `cargo install mdbook-chapter-number`. Then, add the following to your `book.toml`: ```toml [book] title = "Example book" [preprocessor.chapter-number] renderer = ["html"] ```