docs: add npm downloads badge

Author: alexandr-g

README.md

@@ -1,6 +1,7 @@
 [![npm version](https://badge.fury.io/js/cra-template-typescript-redux.svg)](https://badge.fury.io/js/cra-template-typescript-redux)
 [![Action status](https://github.com/alexandr-g/cra-template-typescript-redux/workflows/CI/badge.svg?branch=master)](https://github.com/alexandr-g/cra-template-typescript-redux/actions)
 [![semantic-release](https://img.shields.io/badge/%20%20%F0%9F%93%A6%F0%9F%9A%80-semantic--release-e10079.svg)](https://github.com/semantic-release/semantic-release)
+![npm downloads](https://img.shields.io/npm/dm/cra-template-typescript-redux)
 
 # A quick start Redux + TypeScript Create React App template