Clarify that ALTER DATABASES cannot be used for changing the store format of a database (neo4j#2390)

Author: renetapopova

modules/ROOT/pages/database-administration/standard-databases/alter-databases.adoc

@@ -109,6 +109,7 @@ For more information, see xref::clustering/databases.adoc#alter-topology[Managin
 
 The `ALTER DATABASE` command can be used to set or remove specific options for a database.
 
+.Available options
 [options="header", cols="1m,1m,3a"]
 |===
 | Key
@@ -123,7 +124,8 @@ For details about enrichment mode, see link:{neo4j-docs-base-uri}/cdc/{page-vers
 
 [NOTE]
 ====
-There are no available `OPTIONS` values for composite databases.
+The `ALTER DATABASE` command cannot be used to modify the store format of a database.
+For details about how to change the store format of a database, see xref::database-internals/store-formats.adoc#change-store-format[Changing the store format of existing databases].
 ====
 
 === Modify the options set for a database