Update neo4j-admin database dump syntax and options to reflect the code (#707)

Cherry-picked from #704

Author: renetapopova

modules/ROOT/pages/backup-restore/offline-backup.adoc

@@ -32,45 +32,73 @@ It does not support SSL/TLS.
 
 [source,role=noheader]
 ----
-neo4j-admin database dump   [--verbose]
-                            [--expand-commands]
-                            [--overwrite-destination[=true|false]]
-                            [--to-path=<path> | --to-stdout]
-                            <database>
+neo4j-admin database dump [-h] [--expand-commands]
+                          [--verbose] [--overwrite-destination[=true|false]]
+                          [--additional-config=<file>]
+                          [--to-path=<path> | --to-stdout]
+                          <database>
 ----
 
-<database> --  Name of the database to dump.
-Can contain `*` and `?` for globbing.
+=== Description
+
+Dump a database into a single-file archive.
+The archive can be used by the load command.
+`<to-path>` should be a directory (in which case a file called _<database>.dump_ will be created), or `--to-stdout` can be supplied to use standard output.
+If neither `--to-path` or `--to-stdout` is supplied `server.directories.dumps.root` setting will be used as a destination.
+It is not possible to dump a database that is mounted in a running Neo4j server.
+
+=== Parameters
+
+.`neo4j-admin database dump` parameters
+[options="header", cols="1m,3a"]
+|===
+| Parameter
+| Description
+
+|<database>
+|Name of the database to dump. Can contain `\*` and `?` for globbing.
+ Note that `*` and `?` have special meaning in some shells and might need to be escaped or used with quotes.
+|===
 
 [[offline-backup-command-options]]
 === Options
 
-[options="header",cols="m,m,a"]
+The `neo4j-admin database dump` command has the following options:
+
+.`neo4j-admin database dump` options
+[options="header", cols="5m,6a,4m"]
 |===
 | Option
-| Default
 | Description
+| Default
+
+|--additional-config=<file>
+|Configuration file with additional configuration.
+|
 
-| --verbose
+|--expand-commands
+|Allow command expansion in config value evaluation.
 |
-| Enable verbose output.
 
-| --expand-commands
+| -h, --help
+|Show this help message and exit.
 |
-| Allow command expansion in config value evaluation.
 
-| --overwrite-destination
-| false
-| Overwrite any existing dump file in the destination folder.
+| --overwrite-destination[=true\|false]
+|Overwrite any existing dump file in the destination folder.
+|false
 
-| --to-path
+|--to-path=<path>
+|Destination folder of a database dump.
 |
-| Destination for the database dump.
-It must point to an existing directory.
 
-| --to-stdout
+|--to-stdout
+|Use standard output as the destination for the database dump.
+|
+
+|--verbose
+|Enable verbose output.
 |
-| Use standard output as the destination for the database dump.
 |===
 
 
@@ -80,11 +108,13 @@ It must point to an existing directory.
 The following is an example of how to create a dump of the default database `neo4j` using the `neo4j-admin database dump` command.
 The target directory _/dumps/neo4j_ must exist before running the command and the database must be offline.
 
-[source,shell]
+[source, shell, role="nocopy"]
 ----
-bin/neo4j-admin database dump neo4j --to-path=/dumps/neo4j
+bin/neo4j-admin database dump <database> --to-path=/full/path/to/dumps/<database>
 ----
 
+The command creates a file called _<database>.dump_ where `<database>` is the database specified in the command.
+
 [NOTE]
 ====
 `neo4j-admin database dump` cannot be applied to xref:composite-databases/index.adoc[Composite databases].