docs: add eleith as a contributor for infra (#2069)

.all-contributorsrc

@@ -0,0 +1,26 @@
+{
+  "files": [
+    "CONTRIBUTORS.md"
+  ],
+  "imageSize": 100,
+  "commit": false,
+  "contributors": [
+    {
+      "login": "eleith",
+      "name": "eleith",
+      "avatar_url": "https://avatars.githubusercontent.com/u/284832?v=4",
+      "profile": "http://eleith.com",
+      "contributions": [
+        "infra",
+        "docs"
+      ]
+    }
+  ],
+  "contributorsPerLine": 7,
+  "badgeTemplate": ""
+  "projectName": "docker-mailserver",
+  "projectOwner": "docker-mailserver",
+  "repoType": "github",
+  "repoHost": "https://github.com",
+  "skipCi": false
+}

CONTRIBUTORS.md

@@ -0,0 +1,19 @@
+## 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://eleith.com"><img src="https://avatars.githubusercontent.com/u/284832?v=4?s=100" width="100px;" alt=""/><br /><sub><b>eleith</b></sub></a><br /><a href="#infra-eleith" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a></td>
+  </tr>
+</table>
+
+<!-- markdownlint-restore -->
+<!-- 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!