Add Development status badge

README.md

@@ -3,6 +3,7 @@
 <i>An open source project from Data to AI Lab at MIT.</i>
 </p>
 
+[![Development Status](https://img.shields.io/badge/Development%20Status-3%20--%20Alpha-yellow)](https://pypi.org/search/?q=&o=&c=Development+Status+%3A%3A+3+-+Alpha)
 [![PyPI Shield](https://img.shields.io/pypi/v/ctgan.svg)](https://pypi.python.org/pypi/ctgan)
 [![Travis CI Shield](https://travis-ci.org/sdv-dev/CTGAN.svg?branch=master)](https://travis-ci.org/sdv-dev/CTGAN)
 [![Downloads](https://pepy.tech/badge/ctgan)](https://pepy.tech/project/ctgan)
@@ -15,6 +16,7 @@ Implementation of our NeurIPS paper [Modeling Tabular data using Conditional GAN
 CTGAN is a GAN-based data synthesizer that can generate synthetic tabular data with high fidelity.
 
 * License: [MIT](https://github.com/sdv-dev/CTGAN/blob/master/LICENSE)
+* Development Status: [Alpha](https://pypi.org/search/?q=&o=&c=Development+Status+%3A%3A+3+-+Alpha)
 * Documentation: https://sdv-dev.github.io/CTGAN
 * Homepage: https://github.com/sdv-dev/CTGAN