Update READMEs

Signed-off-by: Beat Buesser <[email protected]>

Author: Beat Buesser

README-cn.md

@@ -7,7 +7,7 @@
 ![Continuous Integration](https://github.com/Trusted-AI/adversarial-robustness-toolbox/workflows/Continuous%20Integration/badge.svg)
 ![CodeQL](https://github.com/Trusted-AI/adversarial-robustness-toolbox/workflows/CodeQL/badge.svg)
 [![Documentation Status](https://readthedocs.org/projects/adversarial-robustness-toolbox/badge/?version=latest)](http://adversarial-robustness-toolbox.readthedocs.io/en/latest/?badge=latest)
-[![GitHub version](https://badge.fury.io/gh/Trusted-AI%2Fadversarial-robustness-toolbox.svg)](https://badge.fury.io/gh/Trusted-AI%2Fadversarial-robustness-toolbox)
+[![PyPI](https://badge.fury.io/py/adversarial-robustness-toolbox.svg)](https://badge.fury.io/py/adversarial-robustness-toolbox)
 [![Language grade: Python](https://img.shields.io/lgtm/grade/python/g/Trusted-AI/adversarial-robustness-toolbox.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/Trusted-AI/adversarial-robustness-toolbox/context:python)
 [![Total alerts](https://img.shields.io/lgtm/alerts/g/Trusted-AI/adversarial-robustness-toolbox.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/Trusted-AI/adversarial-robustness-toolbox/alerts/)
 [![codecov](https://codecov.io/gh/Trusted-AI/adversarial-robustness-toolbox/branch/master/graph/badge.svg)](https://codecov.io/gh/Trusted-AI/adversarial-robustness-toolbox)

README.md

@@ -7,7 +7,7 @@
 ![Continuous Integration](https://github.com/Trusted-AI/adversarial-robustness-toolbox/workflows/Continuous%20Integration/badge.svg)
 ![CodeQL](https://github.com/Trusted-AI/adversarial-robustness-toolbox/workflows/CodeQL/badge.svg)
 [![Documentation Status](https://readthedocs.org/projects/adversarial-robustness-toolbox/badge/?version=latest)](http://adversarial-robustness-toolbox.readthedocs.io/en/latest/?badge=latest)
-[![GitHub version](https://badge.fury.io/gh/Trusted-AI%2Fadversarial-robustness-toolbox.svg)](https://badge.fury.io/gh/Trusted-AI%2Fadversarial-robustness-toolbox)
+[![PyPI](https://badge.fury.io/py/adversarial-robustness-toolbox.svg)](https://badge.fury.io/py/adversarial-robustness-toolbox)
 [![Language grade: Python](https://img.shields.io/lgtm/grade/python/g/Trusted-AI/adversarial-robustness-toolbox.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/Trusted-AI/adversarial-robustness-toolbox/context:python)
 [![Total alerts](https://img.shields.io/lgtm/alerts/g/Trusted-AI/adversarial-robustness-toolbox.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/Trusted-AI/adversarial-robustness-toolbox/alerts/)
 [![codecov](https://codecov.io/gh/Trusted-AI/adversarial-robustness-toolbox/branch/master/graph/badge.svg)](https://codecov.io/gh/Trusted-AI/adversarial-robustness-toolbox)