Update README.md

Signed-off-by: Alok Ranjan Daftuar <aloknecessary@gmail.com>

Author: aloknecessary

README.md

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 </p>
 
-# <p align="center">React Progress Stepper</p>
-### <p align="center">Minimal and beautiful stepper for React.</p>
+<h1 align="center">React Progress Stepper</h1>
+<h3 align="center">Minimal and beautiful stepper for React.</h3>
+
 <p align="center">
 <a href="https://aloknecessary.github.io/react-progress-stepper-ts"><img src="https://img.shields.io/badge/LIVE DEMO-23c275?style=flat"></a>
 <img src="https://img.shields.io/badge/Open%20Source-🤍-23c275">