Update Dutch translator.

TurboGit · TurboGit · commit b6cf98f5a3eb · 2025-12-14T10:20:28.000+01:00
diff --git a/content/contact/_index.md b/content/contact/_index.md
@@ -319,7 +319,7 @@ The translations of darktable are brought to you by:
 </td>
 <td>Dutch
 </td>
-<td>Reinder Mulder
+<td>Reinder Mulder, Ger Siemerink
 </td>
 </tr>
 <tr>
