docs: add Rabattkarte as a contributor for doc [skip ci] (#517)

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

1 files changed, 2 insertions, 1 deletions

diff --git a/README.md b/README.md
index 4754212c4..158759ecd 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@
 
 [![Open Collective backers](https://img.shields.io/static/v1?label=Contribute%20on%20Open%20Collective&message=Donate%20to%20Ferdium&color=9cf&logo=open-collective)](https://opencollective.com/ferdium#category-CONTRIBUTE)
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-<a href='#contributors-'><img src='https://img.shields.io/badge/contributors-306-default.svg?logo=github&color=6c64e4' alt='Contributors'/></a>
+<a href='#contributors-'><img src='https://img.shields.io/badge/contributors-307-default.svg?logo=github&color=6c64e4' alt='Contributors'/></a>
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 - [Ferdium](#ferdium)
@@ -468,6 +468,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href='http://cino.io' title='Ricardo Cino: infra, code'><img src='https://avatars.githubusercontent.com/u/2735602?v=4' alt='cino' style='width:100px;'/></a></td>
     <td align="center"><a href='https://mrksr.de' title='Markus Kaiser: infra'><img src='https://avatars.githubusercontent.com/u/5184063?v=4' alt='mrksr' style='width:100px;'/></a></td>
     <td align="center"><a href='https://github.com/victorbnl' title='Victor B.: code'><img src='https://avatars.githubusercontent.com/u/39555268?v=4' alt='victorbnl' style='width:100px;'/></a></td>
+    <td align="center"><a href='https://nils.fahldieck.de' title='Nils Fahldieck: doc'><img src='https://avatars.githubusercontent.com/u/16440184?v=4' alt='Rabattkarte' style='width:100px;'/></a></td>
   </tr>
 </table>