docs: update contributors.md [skip ci]

Author: allcontributors[bot]

contributors.md

@@ -1,5 +1,5 @@
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[contributorsBadge]: https://img.shields.io/badge/Contributors_✨-7-green.svg?style=plastic
+[contributorsBadge]: https://img.shields.io/badge/Contributors_✨-8-green.svg?style=plastic
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 # Contributors
@@ -41,6 +41,9 @@ Below can you find a list of all currently aknowledged Contributors to our proje
     <td align="center"><a href="https://square.github.io"><img src="https://avatars0.githubusercontent.com/u/82592?v=4" width="100px;" alt=""/><br /><sub><b>Square</b></sub></a><br /><a href="#plugin-square" title="Plugin/utility libraries">🔌</a></td>
     <td align="center"><a href="https://www.jetbrains.com"><img src="https://avatars2.githubusercontent.com/u/878437?v=4" width="100px;" alt=""/><br /><sub><b>JetBrains</b></sub></a><br /><a href="#plugin-JetBrains" title="Plugin/utility libraries">🔌</a></td>
   </tr>
+  <tr>
+    <td align="center"><a href="http://www.johnjleary.com"><img src="https://avatars3.githubusercontent.com/u/5107558?v=4" width="100px;" alt=""/><br /><sub><b>Sean Leary</b></sub></a><br /><a href="#plugin-stleary" title="Plugin/utility libraries">🔌</a></td>
+  </tr>
 </table>
 
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