docs: update README.md [skip ci]

Author: allcontributors[bot]

README.md

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 # CPP_PTB
 
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-[![All Contributors](https://img.shields.io/badge/all_contributors-2-orange.svg?style=flat-square)](#contributors-)
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+[![All Contributors](https://img.shields.io/badge/all_contributors-3-orange.svg?style=flat-square)](#contributors-)
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 This is List of Crossmodal Perpeption and Plasticity lab (CPP) PsychToolBox (PTB) toolbox.
@@ -145,22 +143,18 @@ Use that to stop your script and only restart when the space bar is pressed.
 Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/docs/en/emoji-key)):
 
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     <td align="center"><a href="https://remi-gau.github.io/"><img src="https://avatars3.githubusercontent.com/u/6961185?v=4" width="100px;" alt=""/><br /><sub><b>Remi Gau</b></sub></a><br /><a href="https://github.com/cpp-lln-lab/CPP_PTB/commits?author=Remi-Gau" title="Code">💻</a> <a href="#design-Remi-Gau" title="Design">🎨</a> <a href="https://github.com/cpp-lln-lab/CPP_PTB/commits?author=Remi-Gau" title="Documentation">📖</a></td>
     <td align="center"><a href="https://github.com/marcobarilari"><img src="https://avatars3.githubusercontent.com/u/38101692?v=4" width="100px;" alt=""/><br /><sub><b>marcobarilari</b></sub></a><br /><a href="https://github.com/cpp-lln-lab/CPP_PTB/commits?author=marcobarilari" title="Code">💻</a> <a href="#design-marcobarilari" title="Design">🎨</a> <a href="https://github.com/cpp-lln-lab/CPP_PTB/commits?author=marcobarilari" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://github.com/CerenB"><img src="https://avatars1.githubusercontent.com/u/10451654?v=4" width="100px;" alt=""/><br /><sub><b>CerenB</b></sub></a><br /><a href="https://github.com/cpp-lln-lab/CPP_PTB/commits?author=CerenB" title="Code">💻</a> <a href="#design-CerenB" title="Design">🎨</a> <a href="https://github.com/cpp-lln-lab/CPP_PTB/commits?author=CerenB" title="Documentation">📖</a> <a href="https://github.com/cpp-lln-lab/CPP_PTB/pulls?q=is%3Apr+reviewed-by%3ACerenB" title="Reviewed Pull Requests">👀</a></td>
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 This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome!