Update links in Readme.md

Change-Id: Id74a021f2706b75c33321e019ef5239fa684e95d
diff --git a/Readme.md b/Readme.md
index d902813..727c844 100644
--- a/Readme.md
+++ b/Readme.md
@@ -215,7 +215,7 @@
 ## Development and License
 ### RKorAPClient
 
-**Authors**: [Marc Kupietz](http://www1.ids-mannheim.de/zfo/personal/kupietz/), [Nils Diewald](http://www1.ids-mannheim.de/zfo/personal/diewald/)
+**Authors**: [Marc Kupietz](https://www.ids-mannheim.de/digspra/personal/kupietz/), [Nils Diewald](https://www.ids-mannheim.de/digspra/personal/diewald/)
 
 Copyright (c) 2023, [Leibniz Institute for the German Language](http://www.ids-mannheim.de/), Mannheim, Germany