Fix yamlint error

- Focus on indentation error
- Fix broken links in READMD

Change-Id: I37cca10f8d40f89b2b062c2e572772034ddcd09c
diff --git a/jjb/verify/kubernetes-service.yaml b/jjb/verify/kubernetes-service.yaml
index 68b4ddc..fa92f9f 100644
--- a/jjb/verify/kubernetes-service.yaml
+++ b/jjb/verify/kubernetes-service.yaml
@@ -21,7 +21,7 @@
       - 'xos-unit-test':
           dependency-jobs: 'verify_kubernetes-service_sonarqube'
       - 'xos-service-upgrade':
-            dependency-jobs: 'verify_kubernetes-service-unit-test'
+          dependency-jobs: 'verify_kubernetes-service-unit-test'
 
 - job-group:
     name: 'publish-kubernetes-service-jobs'