Add download badges for NPM and PyPI (#180)

Author: mavdol

README.md

@@ -9,6 +9,8 @@
 # `Capsule`
 
 [![CI](https://img.shields.io/github/actions/workflow/status/capsulerun/capsule/ci.yml?branch=main&label=CI)](https://github.com/capsulerun/capsule/actions/workflows/ci.yml)
+[![NPM Downloads](https://img.shields.io/npm/dm/@capsule-run%2Fcli?label=npm&color=orange&cacheSeconds=1209600)](https://www.npmjs.com/package/@capsule-run/cli)
+[![PyPI Downloads](https://img.shields.io/pypi/dm/capsule-run?label=pypi&color=blue&cacheSeconds=1209600)](https://pypi.org/project/capsule-run/)
 
 [Getting Started](#getting-started) • [Documentation](#documentation) • [Issues](https://github.com/capsulerun/capsule/issues/new) • [Contributing](#contributing)