docs: add Duhlin12 as a contributor for code (#390)

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

.all-contributorsrc

@@ -96,6 +96,15 @@
         "bug",
         "review"
       ]
+    },
+    {
+      "login": "Duhlin12",
+      "name": "Duhlin12",
+      "avatar_url": "https://avatars.githubusercontent.com/u/140636121?v=4",
+      "profile": "https://github.com/Duhlin12",
+      "contributions": [
+        "code"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -107,6 +107,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/ottolote"><img src="https://avatars.githubusercontent.com/u/6615220?v=4?s=100" width="100px;" alt="Otto Lote"/><br /><sub><b>Otto Lote</b></sub></a><br /><a href="https://github.com/CFenner/MMM-Netatmo/commits?author=ottolote" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/cgillinger"><img src="https://avatars.githubusercontent.com/u/11836825?v=4?s=100" width="100px;" alt="cgillinger"/><br /><sub><b>cgillinger</b></sub></a><br /><a href="#translation-cgillinger" title="Translation">🌍</a></td>
       <td align="center" valign="top" width="14.28%"><a href="http://www.bugsounet.fr"><img src="https://avatars.githubusercontent.com/u/30669209?v=4?s=100" width="100px;" alt="Bugsounet - Cédric"/><br /><sub><b>Bugsounet - Cédric</b></sub></a><br /><a href="https://github.com/CFenner/MMM-Netatmo/commits?author=bugsounet" title="Code">💻</a> <a href="https://github.com/CFenner/MMM-Netatmo/issues?q=author%3Abugsounet" title="Bug reports">🐛</a> <a href="https://github.com/CFenner/MMM-Netatmo/pulls?q=is%3Apr+reviewed-by%3Abugsounet" title="Reviewed Pull Requests">👀</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/Duhlin12"><img src="https://avatars.githubusercontent.com/u/140636121?v=4?s=100" width="100px;" alt="Duhlin12"/><br /><sub><b>Duhlin12</b></sub></a><br /><a href="https://github.com/CFenner/MMM-Netatmo/commits?author=Duhlin12" title="Code">💻</a></td>
     </tr>
   </tbody>
 </table>