docs: add LeGoffMael as a contributor for code (#401)

Adds @LeGoffMael as a contributor for code.

This was requested by AlexV525 [in this
comment](#399 (comment))

[skip ci]

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

Author: allcontributors[bot]

.all-contributorsrc

@@ -202,6 +202,15 @@
       "contributions": [
         "bug"
       ]
+    },
+    {
+      "login": "LeGoffMael",
+      "name": "Maël",
+      "avatar_url": "https://avatars.githubusercontent.com/u/22376981?v=4",
+      "profile": "https://www.legoffmael.fr",
+      "contributions": [
+        "code"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -450,6 +450,7 @@ Many thanks to these wonderful people ([emoji key](https://allcontributors.org/d
       <td align="center"><a href="https://github.com/taqiabdulaziz"><img src="https://avatars.githubusercontent.com/u/30410316?v=4?s=50" width="50px;" alt="Muhammad Taqi Abdul Aziz"/><br /><sub><b>Muhammad Taqi Abdul Aziz</b></sub></a><br /><a href="https://github.com/fluttercandies/flutter_wechat_assets_picker/commits?author=taqiabdulaziz" title="Documentation">📖</a></td>
       <td align="center"><a href="http://blog.1qa.link"><img src="https://avatars.githubusercontent.com/u/8766034?v=4?s=50" width="50px;" alt="何锦余"/><br /><sub><b>何锦余</b></sub></a><br /><a href="https://github.com/fluttercandies/flutter_wechat_assets_picker/issues?q=author%3Ahellohejinyu" title="Bug reports">🐛</a></td>
       <td align="center"><a href="https://github.com/leonpesdk"><img src="https://avatars.githubusercontent.com/u/57394644?v=4?s=50" width="50px;" alt="Leon Dudlik"/><br /><sub><b>Leon Dudlik</b></sub></a><br /><a href="https://github.com/fluttercandies/flutter_wechat_assets_picker/issues?q=author%3Aleonpesdk" title="Bug reports">🐛</a></td>
+      <td align="center"><a href="https://www.legoffmael.fr"><img src="https://avatars.githubusercontent.com/u/22376981?v=4?s=50" width="50px;" alt="Maël"/><br /><sub><b>Maël</b></sub></a><br /><a href="https://github.com/fluttercandies/flutter_wechat_assets_picker/commits?author=LeGoffMael" title="Code">💻</a></td>
     </tr>
   </tbody>
 </table>