Add info about artifacts object storage in docs

doc/administration/job_artifacts.md

@@ -46,7 +46,10 @@ To disable artifacts site-wide, follow the steps below.
 After a successful job, GitLab Runner uploads an archive containing the job
 artifacts to GitLab.
 
-To change the location where the artifacts are stored, follow the steps below.
+### Using local storage
+
+To change the location where the artifacts are stored locally, follow the steps
+below.
 
 ---
 
@@ -82,6 +85,13 @@ _The artifacts are stored by default in
 
 1. Save the file and [restart GitLab][] for the changes to take effect.
 
+### Using object storage
+
+In [GitLab Enterprise Edition Premium][eep] you can use an object storage like
+AWS S3 to store the artifacts.
+
+[Learn how to use the object storage option.][ee-os]
+
 ## Expiring artifacts
 
 If an expiry date is used for the artifacts, they are marked for deletion
@@ -148,3 +158,5 @@ memory and disk I/O.
 [reconfigure gitlab]: restart_gitlab.md "How to restart GitLab"
 [restart gitlab]: restart_gitlab.md "How to restart GitLab"
 [gitlab workhorse]: https://gitlab.com/gitlab-org/gitlab-workhorse "GitLab Workhorse repository"
+[ee-os]: https://docs.gitlab.com/ee/administration/job_artifacts.html#using-object-storage
+[eep]: https://about.gitlab.com/gitlab-ee/ "GitLab Enterprise Edition Premium"