docs: update README.md [skip ci]

README.md

@@ -1,6 +1,6 @@
 <kbd><a href="https://ondata.github.io/guidaVisiData/">APRI LA GUIDA</a></kbd>
 <!-- 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 -->
 
 ## VisiData: il coltellino svizzero per i dati
@@ -31,6 +31,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
 <table>
   <tr>
     <td align="center"><a href="http://pigrecoinfinito.com"><img src="https://avatars.githubusercontent.com/u/7631137?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Salvatore Fiandaca</b></sub></a><br /><a href="#content-pigreco" title="Content">🖋</a> <a href="#example-pigreco" title="Examples">💡</a></td>
+    <td align="center"><a href="https://coseerobe.gbvitrano.it/"><img src="https://avatars.githubusercontent.com/u/20488693?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Giovan Battista Vitrano</b></sub></a><br /><a href="#content-gbvitrano" title="Content">🖋</a> <a href="#example-gbvitrano" title="Examples">💡</a></td>
   </tr>
 </table>