New Administration chapter (#504)

Original PR: #494

Author: JPryce-Aklundh

modules/ROOT/content-nav.adoc

@@ -138,6 +138,22 @@
 ** xref:syntax/parameters.adoc[]
 ** xref:syntax/comments.adoc[]
 
+* xref:administration/index.adoc[]
+** xref:administration/databases.adoc[]
+** xref:administration/aliases.adoc[]
+** xref:administration/servers.adoc[]
+** xref:administration/access-control/index.adoc[]
+*** xref:administration/access-control/manage-users.adoc[]
+*** xref:administration/access-control/manage-roles.adoc[]
+*** xref:administration/access-control/manage-privileges.adoc[]
+*** xref:administration/access-control/built-in-roles.adoc[]
+*** xref:administration/access-control/privileges-reads.adoc[]
+*** xref:administration/access-control/privileges-writes.adoc[]
+*** xref:administration/access-control/database-administration.adoc[]
+*** xref:administration/access-control/dbms-administration.adoc[]
+*** xref:administration/access-control/limitations.adoc[]
+*** xref:administration/access-control/privileges-immutable.adoc[]
+
 * xref:deprecations-additions-removals-compatibility.adoc[]
 
 * Appendix