simplfiy reference guide card description

Author: ndgrigorian

docs/source/index.rst

@@ -39,8 +39,8 @@ Intel(R) oneAPI Math Kernel Library
 
     .. grid-item-card:: Reference Guide
 
-        The reference guide contains a detailed description of class :class:`mkl_random.MKLRandomState`,
-        the :ref:`interfaces <interfaces>` submodule, and :ref:`NumPy patching <patching>` utilities.
+        The reference guide contains the detailed documentation of the :mod:`mkl_random` API and its
+        submodules.
 
         +++