Add slash commands

.gitlab/issue_templates/Feature proposal.md

@@ -13,12 +13,22 @@ Use the persona labels as well, see https://gitlab.com/groups/gitlab-org/-/label
 Existing personas are:
 - Parker, Product Manager, https://design.gitlab.com/research/personas#persona-parker
+/label ~"Persona: Product Manager"
+
 - Delaney, Development Team Lead, https://design.gitlab.com/research/personas#persona-delaney
+/label ~"Persona: Development Team Lead"
+
 - Sasha, Software Developer, https://design.gitlab.com/research/personas#persona-sasha
+/label ~"Persona: Software developer"
 - Devon, DevOps Engineer, https://design.gitlab.com/research/personas#persona-devon
+/label ~"Persona: DevOps Engineer"
+
 - Sidney, Systems Administrator, https://design.gitlab.com/research/personas#persona-sidney
+/label ~"Persona: Systems Administrator"
+
 - Sam, Security Analyst, https://design.gitlab.com/research/personas#persona-sam
+/label ~"Persona: Security Analyst"
 -->