Update Package Next Steps after install

doc/install/next_steps.md

@@ -20,9 +20,11 @@ installation.
   Runners, the agents that are responsible for all of the GitLab CI/CD features.
 - [GitLab Pages](../administration/pages/index.md): Configure GitLab Pages to
   allow hosting of static sites.
-- [GitLab Registry](../administration/packages/container_registry.md): With the
-  GitLab Container Registry, every project can have its own space to store Docker
+- [GitLab Registry](../administration/packages/container_registry.md): Set up the
+  GitLab Container Registry so every project can have its own space to store Docker
   images.
+- [GitLab Dependency Proxy](../administration/packages/dependency_proxy.md): Set up the dependency
+  proxy so you can cache container images from Docker Hub for faster, more reliable builds.
 
 ## Security