improve README

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 authors = ["RSS Blue", "Dovydas Joksas"]
 name = "v4v"
-version = "0.5.2"
+version = "0.5.3"
 edition = "2021"
 description = "Value-for-value helper utilities for Podcasting 2.0"
 license = "MIT OR Apache-2.0"

README.md

@@ -2,7 +2,28 @@ A set of helper functions for dealing with value-for-value (V4V) calculations an
 
 Modules include
 
-- [alby] for dealing with Alby's API.
 - [pc20] for Podcasting 2.0-specific functions, including those related to [sat calculations](pc20::calc), [V4V payments](pc20::payments), and [sat forwarding](pc20::forwarding).
+- [alby] for interacting with [Alby](https://getalby.com)'s API.
 
 Check out [docs.rs](https://docs.rs/v4v) for all available functions.
+
+## Example
+
+```rust
+let splits = vec![1, 99];
+let total_sats = 10;
+// The crate ensures that
+// - even after rounding, the total number of sats is preserved
+// - if possible, everyone gets at least 1 sat (and thus their own TLV record)
+assert_eq!(v4v::pc20::calc::compute_sat_recipients(&splits, total_sats), vec![1, 9]);
+```
+
+## Install
+
+```text
+cargo add v4v
+```
+
+## Contribute
+
+Please feel free to contribute by submitting a PR on [GitHub](https://github.com/rssblue/v4v).