docs: update README.md [skip ci]

Author: allcontributors[bot]

README.md

@@ -1,6 +1,6 @@
 # flutter_switch
 <!-- 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](https://img.shields.io/badge/all_contributors-2-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 [![pub package](https://img.shields.io/pub/v/flutter_switch.svg)](https://pub.dev/packages/flutter_switch) [![pub points](https://badges.bar/flutter_switch/pub%20points)](https://pub.dev/packages/flutter_switch/score) [![popularity](https://badges.bar/flutter_switch/popularity)](https://pub.dev/packages/flutter_switch/score) [![likes](https://badges.bar/flutter_switch/likes)](https://pub.dev/packages/flutter_switch/score) <a href="https://github.com/boringdeveloper/FlutterSwitch/actions"><img src="https://img.shields.io/github/workflow/status/boringdeveloper/FlutterSwitch/Widget%20Test?label=build"></a>
@@ -131,6 +131,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
 <table>
   <tr>
     <td align="center"><a href="https://github.com/boringdeveloper"><img src="https://avatars.githubusercontent.com/u/21273958?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Nickr</b></sub></a><br /><a href="https://github.com/boringdeveloper/FlutterSwitch/commits?author=boringdeveloper" title="Code">💻</a> <a href="https://github.com/boringdeveloper/FlutterSwitch/commits?author=boringdeveloper" title="Documentation">📖</a> <a href="#maintenance-boringdeveloper" title="Maintenance">🚧</a> <a href="https://github.com/boringdeveloper/FlutterSwitch/commits?author=boringdeveloper" title="Tests">⚠️</a></td>
+    <td align="center"><a href="https://github.com/LucasED78"><img src="https://avatars.githubusercontent.com/u/30601688?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Lucas Eduardo</b></sub></a><br /><a href="https://github.com/boringdeveloper/FlutterSwitch/commits?author=LucasED78" title="Code">💻</a></td>
   </tr>
 </table>