Add information about management of an enterprise to "About enterprise accounts" article for GitHub AE and GitHub Enterprise Server (#16818)

* Add links to information about enterprise management

* Address Laura's feedback

Author: mattpollard

content/admin/overview/about-enterprise-accounts.md

@@ -18,7 +18,11 @@ An enterprise account allows you to manage multiple organizations{% if enterpris
 - Security {% if enterpriseServerVersions contains currentVersion %}(single sign-on, two factor authentication)
 - Requests {% if enterpriseServerVersions contains currentVersion %}and support bundle sharing {% endif %}with {% data variables.contact.enterprise_support %}{% endif %}
 
-{% if enterpriseServerVersions contains currentVersion %}{% data reusables.enterprise-accounts.enterprise-accounts-billing %} For more information about managing your {% data variables.product.prodname_ghe_cloud %} subscription, see "[Viewing the subscription and usage for your enterprise account](/articles/viewing-the-subscription-and-usage-for-your-enterprise-account)." {% endif %}For more information about managing your {% data variables.product.product_name %} billing settings, see "[Managing billing for your enterprise](/admin/overview/managing-billing-for-your-enterprise)."
+{% if enterpriseServerVersions contains currentVersion %}{% data reusables.enterprise-accounts.enterprise-accounts-billing %} For more information about the management of your {% data variables.product.prodname_ghe_cloud %} subscription, see "[Viewing the subscription and usage for your enterprise account](/articles/viewing-the-subscription-and-usage-for-your-enterprise-account)." {% endif %}For more information about managing your {% data variables.product.product_name %} billing settings, see "[Managing billing for your enterprise](/admin/overview/managing-billing-for-your-enterprise)."
+
+For more information about the management of users, organizations, data, and policies for {% data variables.product.product_location %}, see "[Managing users, organizations, and repositories](/admin/user-management)" and "[Setting policies for your enterprise](/admin/policies)."
+
+For more information about the management of enterprise accounts using the GraphQL API, see "[Enterprise accounts](/graphql/guides/managing-enterprise-accounts)."
 
 {% if enterpriseServerVersions contains currentVersion %}