Merge branch 'docs/make-ce-like-ee-for-ci' into 'master'

Add table entries from EE docs

See merge request gitlab-org/gitlab-ce!25995

doc/ci/README.md

@@ -44,7 +44,7 @@ With basic knowledge of how GitLab CI/CD works, the following documentation exte
 into more features:
 
 | Topic                                                                                                                     | Description                                                                                                                  |
-|:-------------------------------------------------------------------------------------------------------|:-----------------------------------------------------------------------------------------------------------------------------|
+|:--------------------------------------------------------------------------------------------------------------------------|:-----------------------------------------------------------------------------------------------------------------------------|
 | [Introduction to pipelines and jobs](pipelines.md)                                                                        | Provides an overview of GitLab CI/CD and jobs.                                                                               |
 | [CI/CD Variables](variables/README.md)                                                                                    | How environment variables can be configured and made available in pipelines.                                                 |
 | [Where variables can be used](variables/where_variables_can_be_used.md)                                                   | A deeper look into where and how CI/CD variables can be used.                                                                |
@@ -61,6 +61,10 @@ into more features:
 | [Connecting GitLab with a Kubernetes cluster](../user/project/clusters/index.md)                                          | Integrate one or more Kubernetes clusters to your project.                                                                   |
 | [ChatOps](chatops/README.md)                                                                                              | Trigger CI jobs from chat, with results sent back to the channel.                                                            |
 | [Interactive web terminals](interactive_web_terminal/index.md)                                                            | Open an interactive web terminal to debug the running jobs.                                                                  |
+| [Review Apps](review_apps/index.md)                                                                                       | Configure GitLab CI/CD to preview code changes in a per-branch basis.                                                        |
+| [Deploy Boards](https://docs.gitlab.com/ee/user/project/deploy_boards.html) **[PREMIUM]**                                 | Check the current health and status of each CI/CD environment running on Kubernetes.                                         |
+| [GitLab CI/CD for external repositories](https://docs.gitlab.com/ee/ci/ci_cd_for_external_repos/index.html) **[PREMIUM]** | Get the benefits of GitLab CI/CD combined with repositories in GitHub and BitBucket Cloud.                                   |
+| [Protected environments](https://docs.gitlab.com/ce/ci/environments/protected_environments.html) **[PREMIUM]**            | Ensure that only people with the right privileges can deploy to an environment.                                              |
 
 ### GitLab Pages