docs: update README.md [skip ci]

Author: allcontributors[bot]

README.md

@@ -24,6 +24,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://blog.alexv525.com"><img src="https://avatars1.githubusercontent.com/u/15884415?v=4" width="50px;" alt=""/><br /><sub><b>Alex Li</b></sub></a><br /><a href="https://github.com/fluttercandies/flutter_wechat_assets_picker/commits?author=AlexV525" title="Code">💻</a> <a href="#design-AlexV525" title="Design">🎨</a> <a href="https://github.com/fluttercandies/flutter_wechat_assets_picker/commits?author=AlexV525" title="Documentation">📖</a> <a href="#example-AlexV525" title="Examples">💡</a> <a href="#ideas-AlexV525" title="Ideas, Planning, & Feedback">🤔</a> <a href="#maintenance-AlexV525" title="Maintenance">🚧</a> <a href="#question-AlexV525" title="Answering Questions">💬</a> <a href="https://github.com/fluttercandies/flutter_wechat_assets_picker/pulls?q=is%3Apr+reviewed-by%3AAlexV525" title="Reviewed Pull Requests">👀</a></td>
     <td align="center"><a href="https://www.kikt.top"><img src="https://avatars0.githubusercontent.com/u/14145407?v=4" width="50px;" alt=""/><br /><sub><b>Caijinglong</b></sub></a><br /><a href="#example-CaiJingLong" title="Examples">💡</a> <a href="#ideas-CaiJingLong" title="Ideas, Planning, & Feedback">🤔</a></td>
     <td align="center"><a href="https://github.com/SchnMar"><img src="https://avatars3.githubusercontent.com/u/12902321?v=4" width="50px;" alt=""/><br /><sub><b>Marcel Schneider</b></sub></a><br /><a href="https://github.com/fluttercandies/flutter_wechat_assets_picker/issues?q=author%3ASchnMar" title="Bug reports">🐛</a> <a href="https://github.com/fluttercandies/flutter_wechat_assets_picker/commits?author=SchnMar" title="Code">💻</a> <a href="#ideas-SchnMar" title="Ideas, Planning, & Feedback">🤔</a></td>
+    <td align="center"><a href="https://github.com/ganlanshu0211"><img src="https://avatars0.githubusercontent.com/u/9670379?v=4" width="50px;" alt=""/><br /><sub><b>ganlanshu0211</b></sub></a><br /><a href="https://github.com/fluttercandies/flutter_wechat_assets_picker/issues?q=author%3Aganlanshu0211" title="Bug reports">🐛</a> <a href="#ideas-ganlanshu0211" title="Ideas, Planning, & Feedback">🤔</a></td>
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