changed example for default and example value

Author: micheldumontier

versions/3.0.0.md

@@ -1194,10 +1194,11 @@ description: username to fetch
 required: true
 schema:
   type: string
+  example: bob1234
+  default: anonymous
 x-parameterType: http://example.org/username
 x-valueType: http://example.org/facebookid
-x-defaultValue: 
-x-exampleValue: bob
+
 ```
 
 An optional query parameter of a string value, allowing multiple values by repeating the query parameter: