Collect metadata of services at config:service

Change-Id: Ie2504977559c748df399f5d04663c3b415b50e09
diff --git a/metadata/service/config.yml b/metadata/service/config.yml
index 8bcbcfd..553b2c6 100644
--- a/metadata/service/config.yml
+++ b/metadata/service/config.yml
@@ -6,4 +6,4 @@
   devops_portal:
     config:
       enabled: true
-      services: {}
+      service: {}