Update README.md

Author: pankajpatel

README.md

@@ -8,14 +8,12 @@ Code for understanding for creating REST API in Node.js with Express and MySQL.
 The article/tutorial can be be read here: https://time2hack.com/2019/09/creating-rest-api-in-node-js-with-express-and-mysql/
 
 You cna run this collection in Postman with following button:
-<center>
+
 [![Run in Postman](https://run.pstmn.io/button.svg)](https://app.getpostman.com/run-collection/addfc209f1ab0fc6c873)
-</center>
 
 ----
 
-<center>
 ![](./twitter-clone-postman.png)
-</center>
 
-Or Download and import in Postman from here: <a href="./Twitter Clone.postman_collection.json" download>Download</a>
+
+Or Download and import in Postman from here: <a href="./Twitter Clone.postman_collection.json" download>Download</a>