Add examples of PRs for adding CD to repos (#6556)

content/doc/developer/publishing/releasing-cd.adoc

@@ -36,6 +36,12 @@ Verify that the plugin has already been link:../../plugin-development/incrementa
 
 NOTE: A new plugin created from the link:https://github.com/jenkinsci/archetypes/[archetypes] will already have this setup.
 
+Here are some PR examples for various plugins to enable CD:
+
+- link:https://github.com/jenkinsci/junit-plugin/pull/395/files[junit]
+- link:https://github.com/jenkinsci/kubernetes-plugin/pull/1139/files[kubernetes-plugin]
+- link:https://github.com/jenkinsci/plain-credentials-plugin/pull/31/files[plain-credentials-plugin]
+
 === Enable CD Permissions
 
 Enable the continuous delivery flag in link:https://github.com/jenkins-infra/repository-permissions-updater/[repository permission updater] (RPU) for your plugin by filing a pull request adding to `permissions/plugin-xxx.yml`: