Packages diagram quick win (#16438)

* Add the Packages diagram

* Delete short title

* Add diagram

* Save diagram with retina display settings

Author: jmarlena

assets/images/help/package-registry/packages-overview-diagram.png

@@ -1,6 +1,5 @@
 ---
 title: Managing GitHub Packages for your enterprise
-shortTitle: GitHub Packages
 intro: 'You can enable {% data variables.product.prodname_registry %} for your enterprise and manage {% data variables.product.prodname_registry %} settings and allowed packaged types.'
 redirect_from:
   - /enterprise/admin/packages

content/admin/packages/index.md

@@ -26,6 +26,8 @@ You can integrate {% data variables.product.prodname_registry %} with {% data va
 
 {% data reusables.package_registry.container-registry-beta %}
 
+![Diagram showing Node, RubyGems, Apache Maven, Gradle, Nuget, and the container registry with their hosting urls](/assets/images/help/package-registry/packages-overview-diagram.png)
+
 {% endif %}
 
 #### Viewing packages