Bookmarks: Add Atom feed.

Change-Id: I902473b6bffa10afa0cb2295d365d50335de9021
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index 886db80..4237503 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -7,6 +7,8 @@
 #quarkus.log.category."io.vertx.ext.auth.oauth2".level = FINEST
 #quarkus.log.category."io.vertx.ext.jwt".level = FINEST
 
+mulkcms.tag-base = hub.benkard.de
+
 quarkus.datasource.driver = org.postgresql.Driver
 quarkus.datasource.max-size = 8
 quarkus.datasource.min-size = 0