Update README.md (#8)

Author: mplatzer

README.md

@@ -1,5 +1,7 @@
 # Synthetic Data - Quality Assurance
 
+[![](https://pepy.tech/badge/mostlyai-qa)](https://pypi.org/project/mostlyai-qa/) ![](https://img.shields.io/github/license/mostly-ai/mostlyai-qa) ![GitHub Release](https://img.shields.io/github/v/release/mostly-ai/mostlyai-qa) ![PyPI - Python Version](https://img.shields.io/pypi/pyversions/mostlyai-qa)
+
 Assess the fidelity and novelty of synthetic samples with respect to original samples:
 
 1. calculate a rich set of accuracy, similarity and distance metrics