Add new chapter: installation and getting started

[Zerotask]

Recently I heard about https://docs.microsoft.com/en-us/learn/modules/rust-get-started/ which is pretty interesting and they follow a different approach. At the beginning they teach you how to install Rust on your local machine and they also introduce cargo.
This is something fundamental which is missing at the moment.

Therefore I suggest adding a new chapter, which I'd place after the current chapter 1.
This way, learners will see Rust code and learn some very basics and right after it, they learn how to write those basics on their local machine.

This new chapter should cover:

• how do I install Rust (https://rustup.rs/) & update it (rustup update)
• which editors / IDEs support Rust (would recommend Rust with a Rust extension pack)
• how to create and run my first rust program (with rustc for the beginning)
• introduce to cargo A bit more about cargo and crates.io #306
• useful cargo commands
• cargo subcommands (without going to deep here)