bpo-33197: Add versionadded tag to the documentation of ParameterKind (GH-7536)

Author: corona10

Doc/library/inspect.rst

@@ -756,6 +756,8 @@ function.
 
       Describes a enum value of Parameter.kind.
 
+      .. versionadded:: 3.8
+
       Example: print all descriptions of arguments::
 
          >>> def foo(a, b, *, c, d=10):

Misc/NEWS.d/next/Documentation/2018-06-08-23-37-14.bpo-33197.OERTKf.rst

@@ -0,0 +1 @@
+Add versionadded tag to the documentation of ParameterKind.description