Replace Prediction Markets image

[andrealbiac]

Hey!
I was working with @phipsae this week in making some art for the prediction markets challenge he is working on,

Since he's using a car race metaphor for the challenge, the concept changed to the cars and the image didn't make sense anymore how it was before, so here's the new one.

This is how the current prototype is looking like, for context:

Updated the image to this:

[andrealbiac]

@carletex Didn't make a fork for this one cause it's a tiny change, but let me know if I should have. I see some checks have failed so maybe it doesn't work 🤦🏻‍♀️

[carletex]

Hey @andrealbiac thanks for this, looks really nice :)

Can you make the PR in https://github.com/BuidlGuidl/SpeedRunEthereum-v2/

We recently deployed SREv2 and we are not using this repo anymore.

Thanks!

[andrealbiac]

Ahh that's what I was missing, okay will do! Thanks 🤗