Fixing links to config info

Based on a discus comment, the CI/CD link was not useful.
This MR attempts to make the workflow more clear.

doc/user/clusters/agent/install/index.md

@@ -154,8 +154,9 @@ GitLab also provides a [KPT package for the agent](https://gitlab.com/gitlab-org
 
 To configure your agent, add content to the `config.yaml` file:
 
-- [View the configuration reference](../gitops.md#gitops-configuration-reference) for a GitOps workflow.
-- [View the configuration reference](../ci_cd_workflow.md) for a GitLab CI/CD workflow.
+- For a GitOps workflow, [view the configuration reference](../gitops.md#gitops-configuration-reference).
+- For a GitLab CI/CD workflow, [authorize the agent to access your projects](../ci_cd_workflow.md#authorize-the-agent). Then
+  [add `kubectl` commands to your `.gitlab-ci.yml` file](../ci_cd_workflow.md#update-your-gitlab-ciyml-file-to-run-kubectl-commands). 
 
 ## Install multiple agents in your cluster