Merge pull request #9769 from circleci/DOCSS-1925-ghoauth-trigger

Add steps for recreating a GitHub OAuth app trigger

Author: rosieyohannan

docs/guides/modules/orchestrate/pages/set-up-triggers.adoc

@@ -107,6 +107,11 @@ Scheduled::
 --
 For steps to add a schedule trigger, see the xref:schedule-triggers.adoc[Schedule Triggers] page.
 --
+GitHub OAuth::
++
+--
+GitHub OAuth triggers are set up automatically when a GitHub OAuth pipeline is set up. You can delete and re-add a trigger for a GitHub OAuth pipeline. If you do delete a GitHub OAuth trigger, you will see a line at the bottom of the pipeline section: "To re-add the default OAuth trigger click here". Select the link to re-add the default OAuth trigger.
+--
 ====
 
 [#next-steps]