docs: update README.md [skip ci]

Author: allcontributors[bot]

README.md

@@ -1,4 +1,7 @@
 # react-otp-input
+<!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
+[![All Contributors](https://img.shields.io/badge/all_contributors-1-orange.svg?style=flat-square)](#contributors-)
+<!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 [![npm version](https://badge.fury.io/js/react-otp-input.svg)](https://badge.fury.io/js/react-otp-input) [![npm](https://img.shields.io/npm/dw/react-otp-input.svg?logo=npm)](https://www.npmjs.com/package/react-otp-input)
 
@@ -197,3 +200,22 @@ Feel free to open [issues](https://github.com/devfolioco/react-otp-input/issues/
 ## License
 
 [![NPM](https://img.shields.io/npm/l/react-otp-input)](https://github.com/devfolioco/react-otp-input/blob/master/LICENSE)
+
+## Contributors ✨
+
+Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/docs/en/emoji-key)):
+
+<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
+<!-- prettier-ignore-start -->
+<!-- markdownlint-disable -->
+<table>
+  <tr>
+    <td align="center"><a href="https://abhi.studio/"><img src="https://avatars2.githubusercontent.com/u/2150306?v=4" width="100px;" alt=""/><br /><sub><b>Abhishek Warokar</b></sub></a><br /><a href="https://github.com/devfolioco/react-otp-input/commits?author=apollonian" title="Code">💻</a> <a href="#design-apollonian" title="Design">🎨</a> <a href="#maintenance-apollonian" title="Maintenance">🚧</a> <a href="#ideas-apollonian" title="Ideas, Planning, & Feedback">🤔</a> <a href="https://github.com/devfolioco/react-otp-input/pulls?q=is%3Apr+reviewed-by%3Aapollonian" title="Reviewed Pull Requests">👀</a></td>
+  </tr>
+</table>
+
+<!-- markdownlint-enable -->
+<!-- prettier-ignore-end -->
+<!-- ALL-CONTRIBUTORS-LIST:END -->
+
+This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome!