docs: add jannikac as a contributor for code (#73)

* docs: update README.md [skip ci]

* docs: create .all-contributorsrc [skip ci]

* Update README.md

Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>
Co-authored-by: Kaan Barmore-Genç <kaan@bgenc.net>

.all-contributorsrc

@@ -0,0 +1,25 @@
+{
+  "files": [
+    "README.md"
+  ],
+  "imageSize": 100,
+  "commit": false,
+  "commitConvention": "angular",
+  "contributors": [
+    {
+      "login": "jannikac",
+      "name": "jannikac",
+      "avatar_url": "https://avatars.githubusercontent.com/u/21014142?v=4",
+      "profile": "https://github.com/jannikac",
+      "contributions": [
+        "code"
+      ]
+    }
+  ],
+  "contributorsPerLine": 7,
+  "skipCi": true,
+  "repoType": "github",
+  "repoHost": "https://github.com",
+  "projectName": "gandi-live-dns-rust",
+  "projectOwner": "SeriousBug"
+}

README.md

@@ -1,6 +1,12 @@
 ## gandi-live-dns-rust
-
+<!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![tests](https://img.shields.io/github/actions/workflow/status/SeriousBug/gandi-live-dns-rust/test.yml?label=tests&branch=master)](https://github.com/SeriousBug/gandi-live-dns-rust/actions/workflows/test.yml) [![Test coverage report](https://img.shields.io/codecov/c/github/SeriousBug/gandi-live-dns-rust)](https://codecov.io/gh/SeriousBug/gandi-live-dns-rust) [![lint checks](https://img.shields.io/github/actions/workflow/status/SeriousBug/gandi-live-dns-rust/lint.yml?label=lints&branch=master)](https://github.com/SeriousBug/gandi-live-dns-rust/actions/workflows/lint.yml) [![Releases](https://img.shields.io/github/v/release/SeriousBug/gandi-live-dns-rust?include_prereleases)](https://github.com/SeriousBug/gandi-live-dns-rust/releases) [![Docker Image Size](https://img.shields.io/docker/image-size/seriousbug/gandi-live-dns-rust)](https://hub.docker.com/r/seriousbug/gandi-live-dns-rust) [![MIT license](https://img.shields.io/github/license/SeriousBug/gandi-live-dns-rust)](https://github.com/SeriousBug/gandi-live-dns-rust/blob/master/LICENSE.txt)
+[![Contributors](https://img.shields.io/badge/all_contributors-1-orange.svg?label=contributors)](#contributors) <!-- ALL-CONTRIBUTORS-BADGE:END -->
+[![tests](https://img.shields.io/github/actions/workflow/status/SeriousBug/gandi-live-dns-rust/test.yml?label=tests&branch=master)](https://github.com/SeriousBug/gandi-live-dns-rust/actions/workflows/test.yml)
+[![Test coverage report](https://img.shields.io/codecov/c/github/SeriousBug/gandi-live-dns-rust)](https://codecov.io/gh/SeriousBug/gandi-live-dns-rust)
+[![lint checks](https://img.shields.io/github/actions/workflow/status/SeriousBug/gandi-live-dns-rust/lint.yml?label=lints&branch=master)](https://github.com/SeriousBug/gandi-live-dns-rust/actions/workflows/lint.yml)
+[![Releases](https://img.shields.io/github/v/release/SeriousBug/gandi-live-dns-rust?include_prereleases)](https://github.com/SeriousBug/gandi-live-dns-rust/releases)
+[![Docker Image Size](https://img.shields.io/docker/image-size/seriousbug/gandi-live-dns-rust)](https://hub.docker.com/r/seriousbug/gandi-live-dns-rust)
+[![MIT license](https://img.shields.io/github/license/SeriousBug/gandi-live-dns-rust)](https://github.com/SeriousBug/gandi-live-dns-rust/blob/master/LICENSE.txt)
 
 A program that can set the IP addresses for configured DNS entries in
 [Gandi](https://gandi.net)'s domain configuration. Thanks to Gandi's
@@ -136,3 +142,28 @@ Docker with `docker login`. Then follow these steps:
 - [ Adam Vigneaux's Bash based updater, with a docker image](https://github.com/AdamVig/gandi-dynamic-dns)
 - [Yago Riveiro's Python based updater](https://github.com/yriveiro/giu)
 - [ Maxime Le Conte des Floris' Go based updater](https://github.com/mlcdf/dyndns)
+
+## Contributors
+
+<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
+<!-- prettier-ignore-start -->
+<!-- markdownlint-disable -->
+<table>
+  <tbody>
+    <tr>
+      <td align="center"><a href="https://github.com/jannikac"><img src="https://avatars.githubusercontent.com/u/21014142?v=4?s=100" width="100px;" alt="jannikac"/><br /><sub><b>jannikac</b></sub></a><br /><a href="https://github.com/SeriousBug/gandi-live-dns-rust/commits?author=jannikac" title="Code">💻</a></td>
+    </tr>
+  </tbody>
+</table>
+
+<!-- markdownlint-restore -->
+<!-- prettier-ignore-end -->
+
+<!-- ALL-CONTRIBUTORS-LIST:END -->
+<!-- prettier-ignore-start -->
+<!-- markdownlint-disable -->
+
+<!-- markdownlint-restore -->
+<!-- prettier-ignore-end -->
+
+<!-- ALL-CONTRIBUTORS-LIST:END -->