Merge pull request #1807 from seiyab/fix-typo-in-callback-object

fix typo in Callback Object

Author: MikeRalphson

versions/3.0.3.md

@@ -1837,7 +1837,7 @@ description: object created
 
 A map of possible out-of band callbacks related to the parent operation.
 Each value in the map is a [Path Item Object](#pathItemObject) that describes a set of requests that may be initiated by the API provider and the expected responses.
-The key value used to identify the callback object is an expression, evaluated at runtime, that identifies a URL to use for the callback operation.
+The key value used to identify the path item object is an expression, evaluated at runtime, that identifies a URL to use for the callback operation.
 
 ##### Patterned Fields
 Field Pattern | Type | Description