Use correct format for setting topics

Author: mortenlj

.github/settings.yml

@@ -4,4 +4,5 @@ _extends: .github:_settings.yml
 
 # Add overrides here, to tailor for your repository. If you do not want to use the globale settings,
 # remove the above line and provide all the settings here. Make sure you know what you are doing.
-topics: fiaas, kubernetes, logging
+repository:
+  topics: fiaas, kubernetes, logging