Update 3.0.md

"free"

Author: amrapalijz

versions/3.0.md

@@ -881,7 +881,7 @@ This object can be extended with [Specification Extensions](#specificationExtens
 Field Name | Type | Description
 ---|:---:|---
 <a name="operationSummary"></a>summary | `string` | **REQUIRED** See <a href="https://github.com/WebsmartAPI/OpenAPI-Specification/blob/OpenAPI.next/versions/3.0.md#operation-object">above.</a>
-<a name="operationAccessRestriction"></a>x-accessRestriction | `enum` | Access restrictions to invoke the operation. values: none, limited, fee.
+<a name="operationAccessRestriction"></a>x-accessRestriction | `enum` | Access restrictions to invoke the operation. values: none, limited, free.
 
 ##### Operation Object Example