## Show the chunk header in the output {#show-header}

The output of the bullet list at the end of the above example will be like this:

> - One bullet.
>
>   
>   ````
>   ```{r, eval=TRUE}`r ''`
>   ````
>   ```r
>   2 + 2
>   ```
>   ```
>   ## [1] 4
>   ```
>   ````
>   ```
>   ````
>
> - Another bullet.
