Better wording from review feedback

Co-authored-by: Lorna Jane Mitchell <[email protected]>

Author: handrews

versions/3.0.4.md

@@ -2002,7 +2002,7 @@ transactionCallback:
 An object grouping an internal or external example value with basic `summary` and `description` metadata.
 This object is typically used in properties named `examples` (plural), and is a [referenceable](#referenceObject) alternative to older `example` (singular) fields that do not support referencing or metadata.
 
-Allows sharing an example to demonstrate the usage of properties, parameters and objects within OpenAPI.
+Examples allow demonstration of the usage of properties, parameters and objects within OpenAPI.
 
 ##### Fixed Fields
 Field Name | Type | Description