docs: update @ggwadera as a contributor

Author: ggwadera

.all-contributorsrc

@@ -106,7 +106,8 @@
       "avatar_url": "https://avatars2.githubusercontent.com/u/16023489?v=4",
       "profile": "https://www.linkedin.com/in/guilherme-gwadera/",
       "contributions": [
-        "code"
+        "code",
+        "maintenance"
       ]
     }
   ],

README.md

@@ -172,7 +172,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://github.com/bryanjenningz"><img src="https://avatars2.githubusercontent.com/u/7637655?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Bryan Jennings</b></sub></a><br /><a href="https://github.com/garageScript/myProxy/commits?author=bryanjenningz" title="Code">💻</a></td>
     <td align="center"><a href="https://github.com/joshgreenwell"><img src="https://avatars0.githubusercontent.com/u/31043400?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Josh Greenwell</b></sub></a><br /><a href="https://github.com/garageScript/myProxy/commits?author=joshgreenwell" title="Code">💻</a></td>
     <td align="center"><a href="https://coltonehrman.github.io/react-portfolio/"><img src="https://avatars1.githubusercontent.com/u/12456288?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Colton Ehrman</b></sub></a><br /><a href="https://github.com/garageScript/myProxy/commits?author=coltonehrman" title="Code">💻</a></td>
-    <td align="center"><a href="https://www.linkedin.com/in/guilherme-gwadera/"><img src="https://avatars2.githubusercontent.com/u/16023489?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Guilherme Gwadera</b></sub></a><br /><a href="https://github.com/garageScript/myProxy/commits?author=ggwadera" title="Code">💻</a></td>
+    <td align="center"><a href="https://www.linkedin.com/in/guilherme-gwadera/"><img src="https://avatars2.githubusercontent.com/u/16023489?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Guilherme Gwadera</b></sub></a><br /><a href="https://github.com/garageScript/myProxy/commits?author=ggwadera" title="Code">💻</a> <a href="#maintenance-ggwadera" title="Maintenance">🚧</a></td>
   </tr>
 </table>