Merge branch 'update-template-name-via-sentence-case-secutiry' into 'master'

Update template name via sentence case (security)

See merge request gitlab-org/gitlab-ce!19328

.gitlab/issue_templates/Security Developer Workflow.md → .gitlab/issue_templates/Security developer workflow.md

@@ -39,6 +39,7 @@ Set the title to: `[Security] Description of the original issue`
 - [ ] Add the nickname of the external user who found the issue (and/or HackerOne profile) to the Thanks row in the [details section](#details)
 
 ### Summary
+
 #### Links
 
 | Description | Link |