chapter within the chapter.

The numbered chapter names are a naming convention- you don't have to use them. Any .Rmd files with begin with an underscore are skipped.


---
name: headers
class: middle

## .center[.fancy[Numbered Chapters (default)]]

.pull-left[
`index.Rmd`

```r
# Prerequisites

This is a _sample_ book written in **Markdown**. 
```
&lt;hr&gt;
`01-intro.Rmd`

```r
# Introduction

Blah blah blah.
```
&lt;hr&gt;
`02-literature.Rmd`

```r
# Literature

Here is a review of existing methods.
```