doc: Update README.md

README.md

@@ -1,6 +1,7 @@
 rehype-rewrite
 ---
 
+[![Downloads](https://img.shields.io/npm/dm/rehype-rewrite.svg?style=flat)](https://www.npmjs.com/package/rehype-rewrite)
 [![NPM version](https://img.shields.io/npm/v/rehype-rewrite.svg?style=flat)](https://npmjs.org/package/rehype-rewrite)
 [![Build](https://github.com/jaywcjlove/rehype-rewrite/actions/workflows/ci.yml/badge.svg)](https://github.com/jaywcjlove/rehype-rewrite/actions/workflows/ci.yml)
 [![Coverage Status](https://coveralls.io/repos/github/jaywcjlove/rehype-rewrite/badge.svg?branch=main)](https://coveralls.io/github/jaywcjlove/rehype-rewrite?branch=main)
@@ -152,4 +153,4 @@ const htmlStr = unified()
 
 ## License
 
-MIT © [Kenny Wong](https://github.com/jaywcjlove)
+MIT © [Kenny Wong](https://github.com/jaywcjlove)