Massively simplify getting started with Scala

[joan38]

After multiple people telling me how complicated it is using Scala I was bummed to see how complicated are the instructions to install Scala. Not only they are complicated but also they are wrong as they suggest to install Java for Scala CLI, which is not a requirement at all. Today I passed by an Apple store and asked my wife to record me to show how easy it is to get started with Scala: https://www.youtube.com/shorts/9Un9_rTP0yc

So I really think our "Getting Started" should be dead simple. I know we are proud to show coursier and all the thing we can do with it. But most people don't care, they just want to play with Scala right now and if it's more than one command we already lost half of them to some other language.

Let me know what you think on the english version. I can do other languages after.