Docs - Add missing Docker restore commands

doc/raketasks/backup_restore.md

@@ -849,7 +849,22 @@ backup location (default location is `/var/opt/gitlab/backups`).
 For Docker installations, the restore task can be run from host:
 
 ```shell
-docker exec -it <name of container> gitlab-backup restore
+# Stop the processes that are connected to the database
+docker exec -it <name of container> gitlab-ctl stop unicorn
+docker exec -it <name of container> gitlab-ctl stop puma
+docker exec -it <name of container> gitlab-ctl stop sidekiq
+
+# Verify that the processes are all down before continuing
+docker exec -it <name of container> gitlab-ctl status
+
+# Run the restore
+docker exec -it <name of container> gitlab-backup restore BACKUP=11493107454_2018_04_25_10.6.4-ce
+
+# Restart the GitLab container
+docker restart <name of container>
+
+# Check GitLab
+docker exec -it <name of container> gitlab-rake gitlab:check SANITIZE=true
 ```
 
 NOTE: **Note:**