Add socket badge to README

Signed-off-by: Jake Verbaten <[email protected]>

Author: Raynos

README.md

@@ -1,5 +1,6 @@
 # @socketsecurity/sdk
 
+[![Socket Badge](https://socket.dev/api/badge/npm/pkg/@socketsecurity/sdk)](https://socket.dev/npm/package/@socketsecurity/sdk)
 [![npm version](https://img.shields.io/npm/v/@socketsecurity/sdk.svg?style=flat)](https://www.npmjs.com/package/@socketsecurity/sdk)
 [![TypeScript types](https://img.shields.io/npm/types/@socketsecurity/sdk.svg?style=flat)](https://www.npmjs.com/package/@socketsecurity/sdk)
 [![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg)](https://github.com/SocketDev/eslint-config)