Update index.yml

Author: Chukslord1

learn-pr/github/manage-github-actions-enterprise/index.yml

@@ -34,8 +34,10 @@ units:
   - learn.github.manage-github-actions-enterprise.introduction
   - learn.github.manage-github-actions-enterprise.github-enterprise-models
   - learn.github.manage-github-actions-enterprise.manage-actions-workflows
+  - learn.github.manage-github-actions-enterprise.control-actions-access-and-use
   - learn.github.manage-github-actions-enterprise.manage-leverage-reusable-actions
   - learn.github.manage-github-actions-enterprise.manage-runners
+  - learn.github.manage-github-actions-enterprise.configure-self-hosted-runners
   - learn.github.manage-github-actions-enterprise.manage-encrypted-secrets
   - learn.github.manage-github-actions-enterprise.exercise
   - learn.github.manage-github-actions-enterprise.knowledge-check