📝 Add kefranabg as a contributor (#32)

.all-contributorsrc

@@ -0,0 +1,23 @@
+{
+  "files": [
+    "README.md"
+  ],
+  "imageSize": 100,
+  "commit": false,
+  "contributors": [
+    {
+      "login": "kefranabg",
+      "name": "Franck Abgrall",
+      "avatar_url": "https://avatars3.githubusercontent.com/u/9840435?v=4",
+      "profile": "https://www.franck-abgrall.me/",
+      "contributions": [
+        "doc"
+      ]
+    }
+  ],
+  "contributorsPerLine": 7,
+  "projectName": "open-source-promotion-cheat-sheet",
+  "projectOwner": "zenika-open-source",
+  "repoType": "github",
+  "repoHost": "https://github.com"
+}

README.md

@@ -247,3 +247,19 @@ A language is missing? Want to improve this cheat sheet? [Contributions are welc
 </details>
 
 <br />
+
+## ❤️ Contributors
+
+Thanks goes to these wonderful people:
+
+<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
+<!-- prettier-ignore -->
+<table>
+  <tr>
+    <td align="center"><a href="https://www.franck-abgrall.me/"><img src="https://avatars3.githubusercontent.com/u/9840435?v=4" width="100px;" alt="Franck Abgrall"/><br /><sub><b>Franck Abgrall</b></sub></a><br /><a href="https://github.com/zenika-open-source/open-source-promotion-cheat-sheet/commits?author=kefranabg" title="Documentation">📖</a></td>
+  </tr>
+</table>
+
+<!-- ALL-CONTRIBUTORS-LIST:END -->
+
+This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome!