re-order description to match object

Author: ciaranschutte

website/guides/02-administration-guides/03-customizing-the-data-portal.md

@@ -50,10 +50,10 @@ The [base.json file](https://github.com/overture-stack/composer/blob/develop/con
 }
 ```
 
--  The `index` field specifies the name of the Elasticsearch index, in this example the `overture-quickstart-index`
-
 -  `documentType` informs Arranger of the mapping type being used by Maestro, `analysis` or `file` centric
 
+-  The `index` field specifies the name of the Elasticsearch index, in this example the `overture-quickstart-index`
+
     :::info Learn More
     For more information on index mappings and index centricity, see our [administration guide covering index mappings.](/guides/administration-guides/index-mappings)
     :::