Fix yamlint error

- Focus on indentation error
- Fix broken links in READMD

Change-Id: I37cca10f8d40f89b2b062c2e572772034ddcd09c
diff --git a/jjb/verify/fabric-crossconnect.yaml b/jjb/verify/fabric-crossconnect.yaml
index ec79bba..0b02aa9 100644
--- a/jjb/verify/fabric-crossconnect.yaml
+++ b/jjb/verify/fabric-crossconnect.yaml
@@ -21,7 +21,7 @@
       - 'xos-unit-test':
           dependency-jobs: 'verify_fabric-crossconnect_sonarqube'
       - 'xos-service-upgrade':
-            dependency-jobs: 'verify_fabric-crossconnect-unit-test'
+          dependency-jobs: 'verify_fabric-crossconnect-unit-test'
 - job-group:
     name: 'publish-fabric-crossconnect-jobs'
     jobs: