docs: add mCodex as a contributor (#228)

* docs: update README.md [skip ci]

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

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

.all-contributorsrc

@@ -14,7 +14,8 @@
         "doc",
         "code",
         "review",
-        "ideas"
+        "ideas",
+        "maintenance"
       ]
     },
     {

README.md

@@ -24,7 +24,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
 <!-- markdownlint-disable -->
 <table>
   <tr>
-    <td align="center"><a href="https://mcodex.github.io"><img src="https://avatars2.githubusercontent.com/u/5920613?v=4" width="100px;" alt=""/><br /><sub><b>Mateus Andrade</b></sub></a><br /><a href="https://github.com/mCodex/react-native-sensitive-info/commits?author=mcodex" title="Documentation">📖</a> <a href="https://github.com/mCodex/react-native-sensitive-info/commits?author=mcodex" title="Code">💻</a> <a href="https://github.com/mCodex/react-native-sensitive-info/pulls?q=is%3Apr+reviewed-by%3Amcodex" title="Reviewed Pull Requests">👀</a> <a href="#ideas-mcodex" title="Ideas, Planning, & Feedback">🤔</a></td>
+    <td align="center"><a href="https://mcodex.github.io"><img src="https://avatars2.githubusercontent.com/u/5920613?v=4" width="100px;" alt=""/><br /><sub><b>Mateus Andrade</b></sub></a><br /><a href="https://github.com/mCodex/react-native-sensitive-info/commits?author=mcodex" title="Documentation">📖</a> <a href="https://github.com/mCodex/react-native-sensitive-info/commits?author=mcodex" title="Code">💻</a> <a href="https://github.com/mCodex/react-native-sensitive-info/pulls?q=is%3Apr+reviewed-by%3Amcodex" title="Reviewed Pull Requests">👀</a> <a href="#ideas-mcodex" title="Ideas, Planning, & Feedback">🤔</a> <a href="#maintenance-mcodex" title="Maintenance">🚧</a></td>
     <td align="center"><a href="https://github.com/maggialejandro"><img src="https://avatars1.githubusercontent.com/u/3394748?v=4" width="100px;" alt=""/><br /><sub><b>Alejandro</b></sub></a><br /><a href="https://github.com/mCodex/react-native-sensitive-info/commits?author=maggialejandro" title="Code">💻</a> <a href="#maintenance-maggialejandro" title="Maintenance">🚧</a></td>
   </tr>
 </table>