fix: markdownlint

Author: jeichler

content/cluster-configuration/authentication/redhat-sso.md

@@ -6,7 +6,7 @@ description: TBD
 ---
 # Red Hat SSO - via Google
 
-## Official documentation:
+## Official documentation
 
 * [OpenShift 4 - latest](https://docs.openshift.com/container-platform/latest/authentication/identity_providers/configuring-google-identity-provider.html)
 
@@ -37,6 +37,7 @@ oc create secret generic google-secret \
 ### Update OAuth Config
 
 #### oauth.yaml
+
 ```yaml
 apiVersion: config.openshift.io/v1
 kind: OAuth