docs: Update module comment

Author: peterhellberg

docs/sources.tar

@@ -8,8 +8,32 @@
 //!     [![](https://play.c7.se/ff/fp8x8/shots/1.png)](https://play.c7.se/ff/fp8x8/)
 //!     [![](https://play.c7.se/ff/rng/shots/2.png)](https://play.c7.se/ff/rng/)
 //!
-//! #### You might want to install the [ff-init](https://github.com/peterhellberg/ff-init) tool and use that instead of manually creating the files for your game.
+//! #### You might want to install [ff-init](https://github.com/peterhellberg/ff-init) ✨
 //!
+//!     _(and use that instead of manually creating the files for your game)_
+//!
+//! ##### Installation
+//!
+//! _(Requires you to have [Go](https://go.dev/dl/) installed)_
+//!
+//! ```
+//! go install github.com/peterhellberg/ff-init@latest
+//! ```
+//!
+//! ##### Usage
+//!
+//! _(Requires you to have a recent version of
+//! [Zig](https://ziglang.org/download/#release-master),
+//! [firefly_cli](https://docs.fireflyzero.com/user/installation/#-cli), and the
+//! [firefly-emulator](https://docs.fireflyzero.com/user/installation/#-emulator)
+//! installed)_
+//!
+//! ```
+//! ff-init myapp
+//! cd myapp
+//! zig build run
+//! ```
+//! 🌱
 
 const std = @import("std");