Update the API coverage badge to 0.4.9
<img src="https://img.shields.io/badge/official%20chat-t.me%2Fteloxide-blueviolet">
</a>
<a href="https://core.telegram.org/bots/api">
- <img src="https://img.shields.io/badge/API coverage-Up to 0.4.7 (inclusively)-green.svg">
+ <img src="https://img.shields.io/badge/API coverage-Up to 0.4.9 (inclusively)-green.svg">
</a>
A full-featured framework that empowers you to easily build [Telegram bots](https://telegram.org/blog/bot-revolution) using the [`async`/`.await`](https://rust-lang.github.io/async-book/01_getting_started/01_chapter.html) syntax in [Rust](https://www.rust-lang.org/). It handles all the difficult stuff so you can focus only on your business logic.
