feat: badges for the readme (#11)

## 📝 Summary

Badge for:
1. Test status
2. Telegram online user count + link
3. Latest release (will work once the repo is public)

![Screenshot 2024-07-03 at 14 28
38](https://github.com/flashbots/rbuilder/assets/116939/e6e6d427-f17f-4ff8-b369-7914f2c91408)

---

## ✅ I have completed the following steps:

* [x] Run `make lint`
* [x] Run `make test`
* [ ] Added tests (if applicable)

Author: metachris

README.md

@@ -1,4 +1,9 @@
 # rbuilder
+
+[![CI status](https://github.com/flashbots/rbuilder/workflows/Checks/badge.svg)](https://github.com/flashbots/rbuilder/actions/workflows/checks.yaml)
+[![Telegram Chat](https://img.shields.io/endpoint?color=neon&logo=telegram&label=Chat&url=https%3A%2F%2Ftg.sumanjay.workers.dev%2Fflashbots_rbuilder)](https://t.me/flashbots_rbuilder)
+![GitHub Release](https://img.shields.io/github/v/release/flashbots/rbuilder?label=Release)
+
 rbuilder is an open-source, blazingly fast, cutting edge implementation of a Ethereum MEV-Boost block builder written in Rust.
 It is designed to provide a delightful developer experience, enabling community members to contribute and researchers to use rbuilder to study block building.
 #### Features:
@@ -99,6 +104,6 @@ See [`SECURITY.md`](./SECURITY.md)
 
 ## Acknowledgements
 
-None of this would have been possible without having a fast and efficient Ethereum node, so big shoutout to the [Reth](https://github.com/paradigmxyz/reth) team. 
+None of this would have been possible without having a fast and efficient Ethereum node, so big shoutout to the [Reth](https://github.com/paradigmxyz/reth) team.