docs: update README.md [skip ci]

README.md

@@ -1,4 +1,7 @@
 # golang-repo-template
+<!-- 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 -->
 
 :smile: golang-repo-template
 
@@ -43,3 +46,22 @@ See https://github.com/moul/golang-repo-template/releases
 Licensed under the [Apache License, Version 2.0](https://www.apache.org/licenses/LICENSE-2.0) ([`LICENSE-APACHE`](LICENSE-APACHE)) or the [MIT license](https://opensource.org/licenses/MIT) ([`LICENSE-MIT`](LICENSE-MIT)), at your option. See the [`COPYRIGHT`](COPYRIGHT) file for more details.
 
 `SPDX-License-Identifier: (Apache-2.0 OR MIT)`
+
+## 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="http://manfred.life"><img src="https://avatars1.githubusercontent.com/u/94029?v=4" width="100px;" alt=""/><br /><sub><b>Manfred Touron</b></sub></a><br /><a href="#maintenance-moul" title="Maintenance">🚧</a> <a href="https://github.com/moul/golang-repo-template/commits?author=moul" title="Documentation">📖</a> <a href="https://github.com/moul/golang-repo-template/commits?author=moul" title="Tests">⚠️</a> <a href="https://github.com/moul/golang-repo-template/commits?author=moul" title="Code">💻</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!