DOC: Fix broken link to WebUI docs

README_SETUP.md

@@ -43,7 +43,7 @@ versa.
 - If the WebUI shall run, check out the respective submodule: `git submodule
   update --init caosdb-webui`
 - Then configure and compile it according to its
-  [documentation](https://http://caosdb.gitlab.io/caosdb-webui/getting_started.html).
+  [documentation](https://docs.indiscale.com/caosdb-webui/getting_started.html).
 
 #### PAM ###
 Authentication via PAM is possible, for this the PAM development library must be