Added badges (#145)

Summary:
Added badges. Looks cool :)

Pull Request resolved: #145

Reviewed By: omriharosh

Differential Revision: D86890277

Pulled By: talgalili

fbshipit-source-id: 2fe0f995adc82eefb5572046bb34716428836a8d

Author: neuralsorcerer

README.md

@@ -3,6 +3,17 @@
 
 # *balance*: a python package for balancing biased data samples
 
+<div align="center">
+
+[![Current Release](https://img.shields.io/github/release/facebookresearch/balance.svg)](https://github.com/facebookresearch/balance/releases)
+[![Python 3.9+](https://img.shields.io/badge/Python-3.9+-fcbc2c.svg?logo=python&logoColor=white)](https://www.python.org/downloads/)
+[![Build & Test](https://github.com/facebookresearch/balance/actions/workflows/build-and-test.yml/badge.svg)](https://github.com/facebookresearch/balance/actions/workflows/build-and-test.yml?query=branch%3Amain)
+[![CodeQL](https://github.com/facebookresearch/balance/actions/workflows/codeql.yml/badge.svg)](https://github.com/facebookresearch/balance/actions/workflows/codeql.yml?query=branch%3Amain)
+[![Deploy Website](https://github.com/facebookresearch/balance/actions/workflows/deploy-website.yml/badge.svg)](https://github.com/facebookresearch/balance/actions/workflows/deploy-website.yml?query=branch%3Amain)
+[![Release](https://github.com/facebookresearch/balance/actions/workflows/release.yml/badge.svg)](https://github.com/facebookresearch/balance/actions/workflows/release.yml?query=branch%3Amain)
+
+</div>
+
 *balance* is currently **in beta** and is actively supported. Follow us [on github](https://github.com/facebookresearch/balance).
 
 ## What is *balance*?