Update readme

* Direct link to documentation.
* Todo list of features

README.md

@@ -4,12 +4,15 @@ Rust SSIP Client
 [![build status](https://gitlab.com/lp-accessibility/ssip-client/badges/main/pipeline.svg)](https://gitlab.com/lp-accessibility/ssip-client/commits/main)
 [![license](https://img.shields.io/badge/license-MIT%2FApache--2.0-blue)](https://gitlab.com/lp-accessibility/ssip-client/raw/main/LICENSE-MIT)
 [![Crates.io Version](https://img.shields.io/crates/v/ssip-client.svg)](https://crates.io/crates/ssip-client)
-[![docs.rs](https://docs.rs/ssip-client/badge.svg)](https://docs.rs/crate/ssip-client/)
+[![docs.rs](https://docs.rs/ssip-client/badge.svg)](https://docs.rs/ssip-client/latest/ssip_client/)
 
 Speech Dispatcher [SSIP client library](http://htmlpreview.github.io/?https://github.com/brailcom/speechd/blob/master/doc/ssip.html) in pure rust.
 
-* Support notifications.
+- [x] Stop, cancel, pause and resume.
-* Message history is not yet supported.
+- [x] List, set voices.
+- [x] Set rate, pitch, volume.
+- [x] Notifications.
+- [ ] Message history.
 
 Example
 -------
@@ -21,6 +24,8 @@ let msg_id = client.say_line("hello")?;
 client.quit()?;
 ```
 
+See [other examples](https://gitlab.com/lp-accessibility/ssip-client/-/tree/main/examples) in the repository.
+
 License
 -------