Update README.

README.md

@@ -1,29 +1,74 @@
-# Zero To Production / Code (Chapter 4)
+# Zero To Production In Rust
 
-<div align="center"><a href="https://zero2prod.com" target="_blank"><img src="https://static-2.gumroad.com/res/gumroad/3629854790655/asset_previews/bc9026cad3ece1746327c1d70218f602/retina/rsz_zero_to_production_punk.png" /></a></div>
+<div align="center"><a href="https://zero2prod.com" target="_blank"><img src="https://www.zero2prod.com/assets/img/zero2prod_banner.webp" /></a></div>
 
 [Zero To Production In Rust](https://zero2prod.com) is an opinionated introduction to backend development using Rust.
 
-This repository serves as supplementary material for [the book](https://zero2prod.com/): it hosts snapshots of the codebase of our email newsletter project at end of each chapter.
+This repository serves as supplementary material for [the book](https://zero2prod.com/): it hosts several snapshots of the codebase for our email newsletter project as it evolves throughout the book.
 
-**This branch is a snapshot of the project at the end of Chapter 4.**
+## Chapter snapshots
 
-## Pre-requisite
+The [`main`](https://github.com/LukeMathWalker/zero-to-production) branch shows the project at the end of the book.
+
+You can browse the project at the end of previous chapters by switching to their dedicated branches:
+
+- [Chapter 3, Part 0](https://github.com/LukeMathWalker/zero-to-production/tree/root-chapter-03-part0)
+- [Chapter 3, Part 1](https://github.com/LukeMathWalker/zero-to-production/tree/root-chapter-03-part1)
+- [Chapter 4](https://github.com/LukeMathWalker/zero-to-production/tree/root-chapter-04)
+- [Chapter 5](https://github.com/LukeMathWalker/zero-to-production/tree/root-chapter-05)
+- [Chapter 6, Part 0](https://github.com/LukeMathWalker/zero-to-production/tree/root-chapter-06-part0)
+- [Chapter 6, Part 1](https://github.com/LukeMathWalker/zero-to-production/tree/root-chapter-06-part1)
+- [Chapter 7, Part 0](https://github.com/LukeMathWalker/zero-to-production/tree/root-chapter-07-part0)
+- [Chapter 7, Part 1](https://github.com/LukeMathWalker/zero-to-production/tree/root-chapter-07-part1)
+- [Chapter 7, Part 2](https://github.com/LukeMathWalker/zero-to-production/tree/root-chapter-07-part2)
+- [Chapter 8](https://github.com/LukeMathWalker/zero-to-production/tree/root-chapter-08)
+- [Chapter 9](https://github.com/LukeMathWalker/zero-to-production/tree/root-chapter-09)
+- [Chapter 10, Part 0](https://github.com/LukeMathWalker/zero-to-production/tree/root-chapter-10-part0)
+- [Chapter 10, Part 1](https://github.com/LukeMathWalker/zero-to-production/tree/root-chapter-10-part1)
+- [Chapter 10, Part 2](https://github.com/LukeMathWalker/zero-to-production/tree/root-chapter-10-part2)
+- [Chapter 10, Part 3](https://github.com/LukeMathWalker/zero-to-production/tree/root-chapter-10-part3)
+- [Chapter 11](https://github.com/LukeMathWalker/zero-to-production/tree/root-chapter-11)
+
+## Pre-requisites
 
 You'll need to install:
 
 - [Rust](https://www.rust-lang.org/tools/install)
 - [Docker](https://docs.docker.com/get-docker/)
 
+There are also some OS-specific requirements.
+
+### Windows
+  
+```bash
+cargo install -f cargo-binutils
+rustup component add llvm-tools-preview
+```
+
+### Linux
+
+```bash
+# Ubuntu 
+sudo apt-get install lld clang
+# Arch 
+sudo pacman -S lld clang
+```
+
+### MacOS
+
+```bash
+brew install michaeleisel/zld/zld
+```
+
+## How to build
+
 Launch a (migrated) Postgres database via Docker:
 
 ```bash
 ./scripts/init_db.sh
 ```
 
-## How to build
-
-Using `cargo`:
+Launch `cargo`:
 
 ```bash
 cargo build
@@ -31,7 +76,13 @@ cargo build
 
 ## How to test
 
-Using `cargo`:
+Launch a (migrated) Postgres database via Docker:
+
+```bash
+./scripts/init_db.sh
+```
+
+Launch `cargo`:
 
 ```bash
 cargo test