Improve description

Author: jackwaudby

modules/ROOT/pages/configuration/configuration-settings.adoc

@@ -2214,8 +2214,11 @@ m|+++UTC+++
 |Description
 a|Databases may be created from an existing _seed_ (a database backup or dump) stored at some source URI.
 Different types of seed source are supported by different implementations of `com.neo4j.dbms.seeding.SeedProvider`.
-There are two available values, the built-in `S3SeedProvider` and `URLConnectionSeedProvider`.
-Seeds addressed with  `s3:` are supported by `S3SeedProvider` and seeds stored at `file`, `ftp`,`http`, and `https` URIs are supported by `URLConnectionSeedProvider`.
+There following values are available, `CloudSeedProvider`, `S3SeedProvider`, `FileSeedProvider` and `URLConnectionSeedProvider`.
+Seeds addressed with  `s3` are supported by `S3SeedProvider`.
+Seeds addressed with  `s3`, `azb`, `gs` are supported by `CloudSeedProvider`.
+Seeds addressed with `ftp`,`http`, and `https` URIs are supported by `URLConnectionSeedProvider`.
+Seed addressed with `file` are supported by `FileSeedProvider`.
 This list specifies enabled seed providers.
 If a seed source (URI scheme) is supported by multiple providers in the list, the first matching provider will be used.
 If the list is set to empty, the seed from URI functionality is effectively disabled.