## Nice subsection

Some inline code, `crul::ok()`

.

## Maths

When \(a \ne 0\), there are two solutions to \(ax^2 + bx + c = 0\) and they are

\[x = {-b \pm \sqrt{b^2-4ac} \over 2a}.\]

\[x = a_0 + \frac{1}{a_1 + \frac{1}{a_2 + \frac{1}{a_3 + a_4}}} \]

## Include images not generated in R

```
knitr::include_graphics(file.path("figs", "dimitri-houtteman-93AcQpzcASE-unsplash.jpg"))
```

I am adding a test comment ðŸ™‚