docs: update README.md [skip ci]

Author: allcontributors[bot]

README.md

@@ -1,6 +1,6 @@
 # CPP_PTB
 <!-- 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](https://img.shields.io/badge/all_contributors-2-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 List of PsychToolBox (PTB) related functions for the Crossmodal Perpcetion and Plasticity lab (CPP)
@@ -50,6 +50,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
 <table>
   <tr>
     <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>
   </tr>
 </table>