diff --git a/.all-contributorsrc b/.all-contributorsrc
new file mode 100644
index 0000000..895f31c
--- /dev/null
+++ b/.all-contributorsrc
@@ -0,0 +1,24 @@
+{
+  "files": [
+    "README.md"
+  ],
+  "imageSize": 100,
+  "commit": false,
+  "contributors": [
+    {
+      "login": "AndreasAugustin",
+      "name": "andy Augustin",
+      "avatar_url": "https://avatars0.githubusercontent.com/u/8027933?v=4",
+      "profile": "https://github.com/AndreasAugustin",
+      "contributions": [
+        "doc"
+      ]
+    }
+  ],
+  "contributorsPerLine": 7,
+  "projectName": "actions-template-sync",
+  "projectOwner": "AndreasAugustin",
+  "repoType": "github",
+  "repoHost": "https://github.com",
+  "skipCi": true
+}
diff --git a/.markdownlint.json b/.markdownlint.json
index b077f0e..67d2ae5 100644
--- a/.markdownlint.json
+++ b/.markdownlint.json
@@ -1,4 +1,3 @@
 {
-  "default": true,
   "MD013": false
 }
diff --git a/README.md b/README.md
index f28b5d1..9584764 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,7 @@
 # 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 -->
 
 ![Lint](https://github.com/AndreasAugustin/actions-template-sync/workflows/Lint/badge.svg)
 
@@ -9,3 +12,23 @@ The development environment targets are located in the [Makefile](Makefile)
 ```bash
 make help
 ```
+
+## 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://github.com/AndreasAugustin"><img src="https://avatars0.githubusercontent.com/u/8027933?v=4" width="100px;" alt=""/><br /><sub><b>andy Augustin</b></sub></a><br /><a href="https://github.com/AndreasAugustin/actions-template-sync/commits?author=AndreasAugustin" title="Documentation">📖</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!