Add @zeljkoX as a contributor

Author: hipstersmoothie

.all-contributorsrc

@@ -56,6 +56,15 @@
       "contributions": [
         "bug"
       ]
+    },
+    {
+      "login": "zeljkoX",
+      "name": "Zeljko",
+      "avatar_url": "https://avatars3.githubusercontent.com/u/2046481?v=4",
+      "profile": "http://www.linkedin.com/in/zeljko-markovic-19266344",
+      "contributions": [
+        "code"
+      ]
     }
   ],
   "contributorsPerLine": 7

README.md

@@ -167,6 +167,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://github.com/melihberberolu"><img src="https://avatars3.githubusercontent.com/u/3721734?v=4" width="100px;" alt=""/><br /><sub><b>Melih</b></sub></a><br /><a href="https://github.com/react-native-community/hooks/commits?author=melihberberolu" title="Code">💻</a> <a href="https://github.com/react-native-community/hooks/commits?author=melihberberolu" title="Documentation">📖</a> <a href="#infra-melihberberolu" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a> <a href="https://github.com/react-native-community/hooks/commits?author=melihberberolu" title="Tests">⚠️</a></td>
     <td align="center"><a href="https://naturalclar.dev"><img src="https://avatars1.githubusercontent.com/u/6936373?v=4" width="100px;" alt=""/><br /><sub><b>Jesse Katsumata</b></sub></a><br /><a href="https://github.com/react-native-community/hooks/commits?author=Naturalclar" title="Code">💻</a> <a href="https://github.com/react-native-community/hooks/commits?author=Naturalclar" title="Documentation">📖</a> <a href="#maintenance-Naturalclar" title="Maintenance">🚧</a> <a href="https://github.com/react-native-community/hooks/commits?author=Naturalclar" title="Tests">⚠️</a></td>
     <td align="center"><a href="https://twitter.com/webtaculars"><img src="https://avatars0.githubusercontent.com/u/11532969?v=4" width="100px;" alt=""/><br /><sub><b>abhishek gupta</b></sub></a><br /><a href="https://github.com/react-native-community/hooks/issues?q=author%3Awebtaculars" title="Bug reports">🐛</a></td>
+    <td align="center"><a href="http://www.linkedin.com/in/zeljko-markovic-19266344"><img src="https://avatars3.githubusercontent.com/u/2046481?v=4" width="100px;" alt=""/><br /><sub><b>Zeljko</b></sub></a><br /><a href="https://github.com/react-native-community/hooks/commits?author=zeljkoX" title="Code">💻</a></td>
   </tr>
 </table>