docs: add thunze as a contributor for maintenance (#1900)

* docs: update README.md

* docs: update .all-contributorsrc

---------

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

.all-contributorsrc

@@ -683,6 +683,15 @@
       "contributions": [
         "code"
       ]
+    },
+    {
+      "login": "thunze",
+      "name": "Tom",
+      "avatar_url": "https://avatars.githubusercontent.com/u/22795263?v=4",
+      "profile": "https://github.com/thunze",
+      "contributions": [
+        "maintenance"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -570,6 +570,7 @@ Thanks to all contributors:
       <td align="center" valign="top" width="14.28%"><a href="http://saphereye.github.io"><img src="https://avatars.githubusercontent.com/u/59739923?v=4?s=100" width="100px;" alt="Adarsh Das"/><br /><sub><b>Adarsh Das</b></sub></a><br /><a href="https://github.com/ClementTsang/bottom/commits?author=Saphereye" title="Code">💻</a> <a href="https://github.com/ClementTsang/bottom/commits?author=Saphereye" title="Documentation">📖</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/oxyzenQ"><img src="https://avatars.githubusercontent.com/u/130107241?v=4?s=100" width="100px;" alt="rezky_nightky"/><br /><sub><b>rezky_nightky</b></sub></a><br /><a href="https://github.com/ClementTsang/bottom/commits?author=oxyzenQ" title="Documentation">📖</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/gitgoggles"><img src="https://avatars.githubusercontent.com/u/101480183?v=4?s=100" width="100px;" alt="gitgoggles"/><br /><sub><b>gitgoggles</b></sub></a><br /><a href="https://github.com/ClementTsang/bottom/commits?author=gitgoggles" title="Code">💻</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/thunze"><img src="https://avatars.githubusercontent.com/u/22795263?v=4?s=100" width="100px;" alt="Tom"/><br /><sub><b>Tom</b></sub></a><br /><a href="#maintenance-thunze" title="Maintenance">🚧</a></td>
     </tr>
   </tbody>
 </table>