README: Update build status badge to reference correct repository (#38)

In passing, sync up the src/lib.rs file with the README, as its intended.

README.md

@@ -1,8 +1,8 @@
 pg_query.rs   [![Build Status]][actions] [![Latest Version]][crates.io] [![Docs Badge]][docs]
 ===========
 
-[Build Status]: https://img.shields.io/endpoint.svg?url=https%3A%2F%2Factions-badge.atrox.dev%2Fpganalyze%2Fpg_query%2Fbadge&label=build&logo=none
-[actions]: https://actions-badge.atrox.dev/pganalyze/pg_query/goto
+[Build Status]: https://img.shields.io/endpoint.svg?url=https%3A%2F%2Factions-badge.atrox.dev%2Fpganalyze%2Fpg_query.rs%2Fbadge%3Fref%3Dmain&style=flat&label=build&logo=none
+[actions]: https://actions-badge.atrox.dev/pganalyze/pg_query.rs/goto?ref=main
 [Latest Version]: https://img.shields.io/crates/v/pg_query.svg
 [crates.io]: https://crates.io/crates/pg_query
 [Docs Badge]: https://docs.rs/pg_query/badge.svg

src/lib.rs

@@ -1,25 +1,28 @@
 //! Rust pg_query   [![Build Status]][actions] [![Latest Version]][crates.io] [![Docs Badge]][docs]
 //! ===========
 //!
-//! [Build Status]: https://img.shields.io/endpoint.svg?url=https%3A%2F%2Factions-badge.atrox.dev%2Fpaupino%2Fpg_query%2Fbadge&label=build&logo=none
-//! [actions]: https://actions-badge.atrox.dev/paupino/pg_query/goto
+//! [Build Status]: https://img.shields.io/endpoint.svg?url=https%3A%2F%2Factions-badge.atrox.dev%2Fpganalyze%2Fpg_query.rs%2Fbadge%3Fref%3Dmain&style=flat&label=build&logo=none
+//! [actions]: https://actions-badge.atrox.dev/pganalyze/pg_query.rs/goto?ref=main
 //! [Latest Version]: https://img.shields.io/crates/v/pg_query.svg
 //! [crates.io]: https://crates.io/crates/pg_query
 //! [Docs Badge]: https://docs.rs/pg_query/badge.svg
 //! [docs]: https://docs.rs/pg_query
 //!
-//! PostgreSQL parser that uses the [actual PostgreSQL server source]((https://github.com/pganalyze/libpg_query)) to parse
-//! SQL queries and return the internal PostgreSQL parse tree.
+//! This Rust library uses the actual PostgreSQL server source to parse SQL queries and return the internal PostgreSQL parse tree.
 //!
-//! Warning! This library is in early stages of development so any APIs exposed are subject to change.
+//! It also allows you to normalize queries (replacing constant values with $1, etc.) and parse these normalized queries into a parse tree again.
+//!
+//! When you build this library, it builds parts of the PostgreSQL server source (see [libpg_query](https://github.com/pganalyze/libpg_query)), and then statically links it into this library.
+//!
+//! You can find further examples and a longer rationale for the original Ruby implementation [here](https://pganalyze.com/blog/parse-postgresql-queries-in-ruby.html). The Rust version tries to have a very similar API.
 //!
 //! ## Getting started
 //!
 //! Add the following to your `Cargo.toml`
 //!
 //! ```toml
 //! [dependencies]
-//! pg_query = "0.7"
+//! pg_query = "5.0"
 //! ```
 //!
 //! # Example: Parsing a query