docs(root): 👥 fix contributor github login

.all-contributorsrc

@@ -200,7 +200,7 @@
       ]
     },
     {
-      "login": "AngeloGulina",
+      "login": "angelogulina",
       "name": "A (from Sicily)",
       "avatar_url": "https://avatars0.githubusercontent.com/u/4223655?v=4",
       "profile": "https://angelogulina.it",

README.md

@@ -99,7 +99,7 @@ Thanks for taking time to contribute to Barba :tada: :+1:
       <td align="center" valign="top" width="14.28%"><a href="https://www.jamesdocherty.com/"><img src="https://avatars1.githubusercontent.com/u/325490?v=4?s=100" width="100px;" alt="James"/><br /><sub><b>James</b></sub></a><br /><a href="https://github.com/barbajs/barba/commits?author=docherty" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="http://ruggeri.io"><img src="https://avatars0.githubusercontent.com/u/999162?v=4?s=100" width="100px;" alt="Nicholas"/><br /><sub><b>Nicholas</b></sub></a><br /><a href="https://github.com/barbajs/barba/commits?author=nicholasruggeri" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="http://patrick.wtf"><img src="https://avatars1.githubusercontent.com/u/667029?v=4?s=100" width="100px;" alt="Patrick Arminio"/><br /><sub><b>Patrick Arminio</b></sub></a><br /><a href="https://github.com/barbajs/barba/commits?author=patrick91" title="Code">💻</a></td>
-      <td align="center" valign="top" width="14.28%"><a href="https://angelogulina.it"><img src="https://avatars0.githubusercontent.com/u/4223655?v=4?s=100" width="100px;" alt="A (from Sicily)"/><br /><sub><b>A (from Sicily)</b></sub></a><br /><a href="https://github.com/barbajs/barba/commits?author=AngeloGulina" title="Code">💻</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://angelogulina.it"><img src="https://avatars0.githubusercontent.com/u/4223655?v=4?s=100" width="100px;" alt="A (from Sicily)"/><br /><sub><b>A (from Sicily)</b></sub></a><br /><a href="https://github.com/barbajs/barba/commits?author=angelogulina" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/pavel-mazhuga"><img src="https://avatars3.githubusercontent.com/u/29140681?v=4?s=100" width="100px;" alt="Pavel Mazhuga"/><br /><sub><b>Pavel Mazhuga</b></sub></a><br /><a href="#question-pavel-mazhuga" title="Answering Questions">💬</a></td>
       <td align="center" valign="top" width="14.28%"><a href="http://dmdcode.it"><img src="https://avatars0.githubusercontent.com/u/7113516?v=4?s=100" width="100px;" alt="Daniele De Matteo"/><br /><sub><b>Daniele De Matteo</b></sub></a><br /><a href="#question-DMDc0de" title="Answering Questions">💬</a></td>
     </tr>