Fix Cargo.toml links

Cargo.toml

 [package]
 name = "micro_musicbox"
-version = "0.3.0"
+version = "0.3.1"
 edition = "2021"
 license = "Apache-2.0"
 authors = ["Louis Capitanchik <louis@microhacks.co.uk>"]
-repository = "https://lab.lcr.gr/microhacks/micro_bevy_musicbox"
+repository = "https://lab.lcr.gr/microhacks/micro-bevy-musicbox"
+documentation = "https://docs.rs/micro_musicbox"
 description = "Opinionated service interface for bevy_kira_audio"
 
 [features]

README.md

@@ -2,6 +2,10 @@
 
 Play some tunes
 
+[![Bevy tracking](https://img.shields.io/badge/Bevy%20tracking-released%20version-lightblue?style=for-the-badge)](https://github.com/bevyengine/bevy/blob/main/docs/plugins_guidelines.md#main-branch-tracking)
+[![Crates.io](https://img.shields.io/crates/v/micro_musicbox?style=for-the-badge)](https://crates.io/crates/micro_musicbox)
+[![docs.rs](https://img.shields.io/docsrs/micro_musixbox?style=for-the-badge)](https://docs.rs/micro_musicbox)
+
 ## What?
 
 This library provides a convenience wrapper around bevy_kira_audio, handling all the