Add description of seedRestoreUntil option

Also cleanup some other seed related language in the same page

Author: nick-giles-neo

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

@@ -95,7 +95,7 @@ Replaced by `existingDataSeedServer`.
 | `seedURI`
 | URI to a backup or a dump from an existing database.
 |
-Defines an identical seed from an external source which will be used to seed all servers.
+Defines a seed from an external source which will be used to seed all servers.
 
 | `seedConfig`
 | Comma-separated list of configuration values.
@@ -148,12 +148,11 @@ The `CREATE DATABASE [OR REPLACE]` command can have a map of options, e.g. `OPTI
 |
 Defines which server is used for seeding the data of the created database.
 The server ID can be found in the `serverId` column after running `SHOW SERVERS`.
-Replaced by `existingDataSeedServer`.
 
 | `seedURI`
 | URI to a backup or a dump from an existing database.
 |
-Defines an identical seed from an external source which will be used to seed all servers.
+Defines a seed from an external source which will be used to seed all servers.
 
 | `seedConfig`
 | Comma-separated list of configuration values.
@@ -176,6 +175,13 @@ For more information on store formats, see xref::database-internals/store-format
 
 If the store is seeded with `seedURI` or `existingDataSeedServer`, or if the command is used to mount pre-existing store files already present on the disk, they will retain their current store format without any modifications.
 
+| `seedRestoreUntil`
+| 
+| Datetime or transaction id. E.g. `datetime("2025-01-01T12:15:00.000+0100")` or `123456`
+If you are passing a `seedURI` that leads to a backup chain, including differential backups, you can choose to not apply all the transactions in the differential backups.
+To seed up to a specific date, specify a `datetime` and this will seed the database with transactions committed before the provided timestamp.
+To seed up to a specific transaction ID, specify a transaction id, and this will seed the database with transactions up to, but not including the specified transaction.
+
 | `existingData` label:deprecated[Deprecated]
 | `use`
 |