Add docs for pipeline list filtering

doc/ci/pipelines/index.md

@@ -82,7 +82,7 @@ You can find the current and historical pipeline runs under your project's
 **CI/CD > Pipelines** page. You can also access pipelines for a merge request by navigating
 to its **Pipelines** tab.
 
-![Pipelines index page](img/pipelines_index.png)
+![Pipelines index page](img/pipelines_index_v13_0.png)
 
 Clicking a pipeline will bring you to the **Pipeline Details** page and show
 the jobs that were run for that pipeline. From here you can cancel a running pipeline,
@@ -93,6 +93,12 @@ latest pipeline for the last commit of a given branch is available at `/project/
 Also, `/project/pipelines/latest` will redirect you to the latest pipeline for the last commit
 on the project's default branch.
 
+[Starting in GitLab 13.0](https://gitlab.com/gitlab-org/gitlab/-/issues/215367),
+you can filter the pipeline list by:
+
+- Trigger author
+- Branch name
+
 ### Run a pipeline manually
 
 Pipelines can be manually executed, with predefined or manually-specified [variables](../variables/README.md).