Update @Gamal-Shaban as a contributor

Author: Nader Dabit

Diff for: .all-contributorsrc

@@ -194,7 +194,9 @@
       "avatar_url": "https://avatars1.githubusercontent.com/u/17288652?v=4",
       "profile": "https://github.com/Gamal-Shaban",
       "contributions": [
-        "code"
+        "code",
+        "doc",
+        "test"
       ]
     }
   ],

Diff for: README.md

@@ -186,7 +186,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://dylanvann.com/"><img src="https://avatars0.githubusercontent.com/u/1537615?v=4" width="100px;" alt=""/><br /><sub><b>Dylan Vann</b></sub></a><br /><a href="https://github.com/react-native-community/hooks/commits?author=DylanVann" title="Code">💻</a></td>
     <td align="center"><a href="https://github.com/thinklinux"><img src="https://avatars1.githubusercontent.com/u/326949?v=4" width="100px;" alt=""/><br /><sub><b>Tihomir Valkanov</b></sub></a><br /><a href="https://github.com/react-native-community/hooks/commits?author=thinklinux" title="Documentation">📖</a></td>
     <td align="center"><a href="http://twitter.com/pistoudev"><img src="https://avatars1.githubusercontent.com/u/6703711?v=4" width="100px;" alt=""/><br /><sub><b>Pierre Skowron</b></sub></a><br /><a href="https://github.com/react-native-community/hooks/commits?author=pistou" title="Code">💻</a></td>
-    <td align="center"><a href="https://github.com/Gamal-Shaban"><img src="https://avatars1.githubusercontent.com/u/17288652?v=4" width="100px;" alt=""/><br /><sub><b>Gamal Shaban</b></sub></a><br /><a href="https://github.com/react-native-community/hooks/commits?author=Gamal-Shaban" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/Gamal-Shaban"><img src="https://avatars1.githubusercontent.com/u/17288652?v=4" width="100px;" alt=""/><br /><sub><b>Gamal Shaban</b></sub></a><br /><a href="https://github.com/react-native-community/hooks/commits?author=Gamal-Shaban" title="Code">💻</a> <a href="https://github.com/react-native-community/hooks/commits?author=Gamal-Shaban" title="Documentation">📖</a> <a href="https://github.com/react-native-community/hooks/commits?author=Gamal-Shaban" title="Tests">⚠️</a></td>
   </tr>
 </table>