docs: add TheVinhLuong as a contributor for code (#73)

* docs: update README.md [skip ci]

* docs: update .all-contributorsrc [skip ci]

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

Author: allcontributors[bot]

.all-contributorsrc

@@ -69,6 +69,15 @@
       "contributions": [
         "bug"
       ]
+    },
+    {
+      "login": "TheVinhLuong",
+      "name": "Luong The Vinh",
+      "avatar_url": "https://avatars.githubusercontent.com/u/20371879?v=4",
+      "profile": "https://github.com/TheVinhLuong",
+      "contributions": [
+        "code"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -112,6 +112,7 @@ Thank goes to these wonderful people ([emoji key](https://allcontributors.org/do
     <td align="center"><a href="https://github.com/mjl0602"><img src="https://avatars1.githubusercontent.com/u/32868496?v=4?s=50" width="50px;" alt=""/><br /><sub><b>mjl0602</b></sub></a><br /><a href="https://github.com/fluttercandies/flutter_wechat_camera_picker/commits?author=mjl0602" title="Code">💻</a> <a href="#ideas-mjl0602" title="Ideas, Planning, & Feedback">🤔</a></td>
     <td align="center"><a href="https://github.com/siyukok"><img src="https://avatars0.githubusercontent.com/u/21030561?v=4?s=50" width="50px;" alt=""/><br /><sub><b>AliasWang</b></sub></a><br /><a href="https://github.com/fluttercandies/flutter_wechat_camera_picker/commits?author=siyukok" title="Code">💻</a> <a href="#ideas-siyukok" title="Ideas, Planning, & Feedback">🤔</a></td>
     <td align="center"><a href="https://github.com/leftcoding"><img src="https://avatars.githubusercontent.com/u/7122926?v=4?s=50" width="50px;" alt=""/><br /><sub><b>leftcoding</b></sub></a><br /><a href="https://github.com/fluttercandies/flutter_wechat_camera_picker/issues?q=author%3Aleftcoding" title="Bug reports">🐛</a></td>
+    <td align="center"><a href="https://github.com/TheVinhLuong"><img src="https://avatars.githubusercontent.com/u/20371879?v=4?s=50" width="50px;" alt=""/><br /><sub><b>Luong The Vinh</b></sub></a><br /><a href="https://github.com/fluttercandies/flutter_wechat_camera_picker/commits?author=TheVinhLuong" title="Code">💻</a></td>
   </tr>
 </table>