Commit suggestions from PR review.

Co-authored-by: Ralf Handl <[email protected]>

Author: mikekistler

versions/3.0.4.md

@@ -3820,7 +3820,7 @@ Two examples of this:
 
 ### OpenAPI Description Formats
 
-OpenAPI Descriptions use JSON, YAML, and JSON Schema, and therefore share their security considerations:
+OpenAPI Descriptions use a combination of JSON, YAML, and JSON Schema, and therefore share their security considerations:
 
 * [JSON](https://www.iana.org/assignments/media-types/application/json)
 * [YAML](https://www.iana.org/assignments/media-types/application/yaml)