docs: add Alomon31 as a contributor and initiate contributors system (#648)

* docs: update README.md [skip ci]

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

* Update .all-contributorsrc

* Update CONTRIBUTORS.md

Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>
Co-authored-by: Florian <1technophile@users.noreply.github.com>

README.md

@@ -1,4 +1,7 @@
 [![Community forum](https://img.shields.io/badge/community-forum-brightgreen.svg)](https://community.openmqttgateway.com)
+<!-- 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 -->
 [![GitLicense](https://gitlicense.com/badge/1technophile/OpenMQTTGateway)](https://gitlicense.com/license/1technophile/OpenMQTTGateway)
 [![Download count](https://img.shields.io/github/downloads/1technophile/OpenMQTTGateway/total.svg)](https://github.com/1technophile/OpenMQTTGateway/releases)
 
@@ -23,3 +26,22 @@ A list of compatible components to build your gateway is available [here](https:
 If you want to buy a coffee or other beverage so as to give me some support, here is a way to do it : 
 
 <a href="https://www.buymeacoffee.com/1technophile" target="_blank"><img src="https://www.buymeacoffee.com/assets/img/custom_images/orange_img.png" alt="Buy Me A Coffee" style="height: auto !important;width: auto !important;" ></a>
+
+## 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/Alomon31"><img src="https://avatars0.githubusercontent.com/u/59569925?v=4" width="100px;" alt=""/><br /><sub><b>Alomon31</b></sub></a><br /><a href="https://github.com/1technophile/OpenMQTTGateway/commits?author=Alomon31" 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!