Update run.md (#1518)

* Update run.md

* Update run.md

content/docs/pipelines/overview/concepts/run.md

@@ -11,9 +11,9 @@ details page on the Kubeflow Pipelines UI, where you can see the runtime graph,
 output artifacts, and logs for each step in the run.
 
 <a id=recurring-run> 
-A *recurring run* is a repeatable run of a pipeline. The
-configuration for a recurring run includes a copy of a pipeline with all
-parameter values specified and a 
+A *recurring run* , or job in the Kubeflow Pipelines [backend APIs](https://github.com/kubeflow/pipelines/tree/06e4dc660498ce10793d566ca50b8d0425b39981/backend/api/go_http_client/job_client), is a repeatable run of
+a pipeline. The configuration for a recurring run includes a copy of a pipeline
+with all parameter values specified and a 
 [run trigger](/docs/pipelines/concepts/run-trigger/).
 You can start a recurring run inside any experiment, and it will periodically
 start a new copy of the run configuration. You can enable/disable the recurring
@@ -27,4 +27,4 @@ triggered to run frequently.
 * Read an [overview of Kubeflow Pipelines](/docs/pipelines/pipelines-overview/).
 * Follow the [pipelines quickstart guide](/docs/pipelines/pipelines-quickstart/) 
   to deploy Kubeflow and run a sample pipeline directly from the Kubeflow 
-  Pipelines UI.
\ No newline at end of file
+  Pipelines UI.