Changed language in Link Object to ensure either OperationRef or OperationId is present
MODIFY
versions/3.0.md
versions/3.0.md
@@ -1986,7 +1986,7 @@ Field Name | Type | Description
This object can be extended with [Specification Extensions](#specificationExtensions).
-Locating a linked resource MAY be performed by either a `operationRef` or `operationId`.
+A linked operation MUST be identified using either an `operationRef` or `operationId`.
In the case of an `operationId`, it MUST be unique and resolved in the scope of the OAS document.
Because of the potential for name clashes, the `operationRef` syntax is preferred
for specifications with external references.

Changed language in Link Object to ensure either OperationRef or OperationId is present