change of config yml

_config.yml

@@ -20,7 +20,7 @@ description: >- # this means to ignore newlines until "baseurl:"
 
 # URL settings (the most difficult part, please refer to the guide)
 baseurl: "/labCards"  # the subpath of your site, e.g. /gitlab-repository-name
-url: "https://r3-core.pages.uni.lu"  # the base hostname & protocol for your site, e.g. http://gitlab-namespace-name.pages.uni.lu/
+url: "https://r3.pages.uni.lu"  # the base hostname & protocol for your site, e.g. http://gitlab-namespace-name.pages.uni.lu/
 
 # Banner settings
 banner: labcard  # When you have custom images, change this setting's value to the name of the folder containing them