Add link to GitLab project examples in Description Template documentation

changelogs/unreleased/37499-add-description-template-examples-to-the-docs.yml

+---
+title: Add description template examples to documentation
+merge_request:
+author:
+type: other

doc/user/project/description_templates.md

@@ -39,4 +39,13 @@ changes you made after picking the template and return it to its initial status.
 
 ![Description templates](img/description_templates.png)
 
+## Description template example
+
+We make use of Description Templates for Issues and Merge Requests within the GitLab Community Edition project. Please refer to the [`.gitlab` folder][gitlab-ce-templates] for some examples.
+
+> **Tip:**
+It is possible to use [quick actions](./quick_actions.md) within description templates to quickly add labels, assignees, and milestones. The quick actions will only be executed if the user submitting the Issue or Merge Request has the permissions perform the relevant actions.
+
 [ce-4981]: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/4981
+[gitlab-ce-templates]: https://gitlab.com/gitlab-org/gitlab-ce/tree/master/.gitlab
+