Add ParametersSha256DigestComponent

Change-Id: I4ee53136adc6a0fc0af9abbb9fb8fdec265ba749
Refs: #4658, #4690
diff --git a/interest.rst b/interest.rst
index caa6ba3..bd8bb11 100644
--- a/interest.rst
+++ b/interest.rst
@@ -133,5 +133,4 @@
                     BYTE*
 
 The ``Parameters`` element can carry any arbitrary data that parameterizes the request for Data.
-The Interest's name should include a component or components to ensure uniqueness of the parametrized Interest.
-For example, a SHA256 digest of the ``Parameters`` TLV can be included as one of the components of the Interest name.
+The Interest's name MUST include a Interest parameters digest component to ensure uniqueness and integrity of the parametrized Interest (see :ref:`Interest Parameters Digest Component` section for additional details).