docs: update README.md [skip ci]

README.md

@@ -1,4 +1,7 @@
 # Hydro
+<!-- 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 -->
 [![FOSSA Status](https://app.fossa.com/api/projects/git%2Bgithub.com%2Fhydro-dev%2FHydro.svg?type=shield)](https://app.fossa.com/projects/git%2Bgithub.com%2Fhydro-dev%2FHydro?ref=badge_shield)
 
 Hydro是一个高效的信息学在线测评系统。特点：易于部署，轻量，功能强大且易于扩展。  
@@ -45,3 +48,22 @@ Telegram [@webpack_exports_undefined](https://t.me/webpack_exports_undefined)
 
 ## License
 [![FOSSA Status](https://app.fossa.com/api/projects/git%2Bgithub.com%2Fhydro-dev%2FHydro.svg?type=large)](https://app.fossa.com/projects/git%2Bgithub.com%2Fhydro-dev%2FHydro?ref=badge_large)
+
+## 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://undefined.moe/"><img src="https://avatars3.githubusercontent.com/u/29992205?v=4" width="100px;" alt=""/><br /><sub><b>undefined</b></sub></a><br /><a href="https://github.com/hydro-dev/Hydro/commits?author=undefined-moe" title="Code">💻</a> <a href="#content-undefined-moe" title="Content">🖋</a> <a href="https://github.com/hydro-dev/Hydro/commits?author=undefined-moe" title="Documentation">📖</a> <a href="#ideas-undefined-moe" title="Ideas, Planning, & Feedback">🤔</a> <a href="#maintenance-undefined-moe" title="Maintenance">🚧</a> <a href="#infra-undefined-moe" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a> <a href="#question-undefined-moe" title="Answering Questions">💬</a> <a href="https://github.com/hydro-dev/Hydro/pulls?q=is%3Apr+reviewed-by%3Aundefined-moe" 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!