docs: note that default types only availalbe since 1.1.0

Author: weierophinney

docs/book/default-types.md

@@ -1,5 +1,7 @@
 # Default Types
 
+- **Since 1.1.0.**
+
 When you raise your own exceptions implementing `Zend\ProblemDetails\Exception\ProblemDetailsExceptionInterface` 
 you will always be in control of all the properties returned as part of the
 response payload, including the `status`, `type`, `title`, `detail`, etc.

docs/book/response.md

@@ -150,7 +150,7 @@ This package also provides a factory for generating the
       containing a `default_types_map` key, and that value is an array, that
       value is provided as the `$defaultTypesMap` parameter; see the
       [default types documentation](default-types.md) for details on defining
-      this map.
+      this map. (Since 1.1.0.)
 
 If any of the above config values are not present, a `null` value will be
 passed, allowing the default value to be used.