verbatim_chunks.Rmd

A regular code chunk:

```{r regular}
data(cars)
summary(cars)
```

A verbatim code chunk:

<pre><code>```{r verbatim}
data(cars)
summary(cars)
```</code></pre>

Seems like you need to have the `<code>` and the 3 initial backticks on the same
line, and similarly for the ending 3 backticks and `</code>`.