add the wrap element in collection field

Author: tasmoore

modules/ROOT/pages/int-manage-custom-metadata.adoc

@@ -25,7 +25,7 @@ To create custom metadata:
 . Enter a unique name for the metadata.
 . Select the metadata type, such as CSV, JSON, or XML.
 . Add additional required details for the metadata, depending on the type selected, such as the definition or source type, schema, and class. You must also upload a sample file for some metadata types.
-. Select to wrap the 
+. Select to wrap the element in a collection, which converts the custom metadata into an array. The enrichment element in the `application-types.xml` file is updated automatically with the conversion.
 . Click *Save and Close*.
 
 The custom metadata is stored in the `application-types.xml` file in your project's resources folder. Sample files and custom metadata created in Anypoint Code Builder are compatible with Anypoint Studio and vice versa.