Testing, testing...

First attempt using Authorea. Just messing with text options and doing some math markdown from scratch. Trying out the citation bits and linking to GitHub.

This is Bold, This is Italic

$$\ y = x^{2} + 2x -3$$

$$y = \frac{-2 \pm \sqrt{2^{2}-4(1)(-3)}}{2(1)}$$

$$y = \frac{-2 \pm \sqrt{4+12}}{2}$$

$$y = \frac{-2 \pm \sqrt{16}}{2}$$

$$y = \frac{-2 \pm {16}}{2}$$

$$y = \frac{-2 + {4}}{2} = 1$$

$$y = \frac{2 + {4}}{2} = -3$$

Now I'm going to just add a jellyfish here, because why not?