Add badges to README.md

README.md

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 A simple records system using MongoDB, Express.js, React.js, and Node.js with real-time Create, Read, Update, and Delete operations using Socket.io. REST API was implemented on the back-end. Semantic UI React was used for the UI.
 
+![Node Version](https://img.shields.io/badge/node-v6.11.0-yellowgreen.svg)
+![NPM Version](https://img.shields.io/badge/npm-v3.10.10-blue.svg)
+![Language: American English](https://img.shields.io/badge/language-american%20english-red.svg)
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 Demo: [https://mern-crud.herokuapp.com/](https://mern-crud.herokuapp.com/)
 
 ![MERN CRUD Screenshot](screenshot.png)