Resolved a warning: term not in glossary: 'universal function'

Author: antonwolfy

doc/reference/ndarray.rst

@@ -231,7 +231,7 @@ Each of the arithmetic operations (``+``, ``-``, ``*``, ``/``, ``//``,
 ``%``, ``divmod()``, ``**`` or ``pow()``, ``<<``, ``>>``, ``&``,
 ``^``, ``|``, ``~``) and the comparisons (``==``, ``<``, ``>``,
 ``<=``, ``>=``, ``!=``) is equivalent to the corresponding
-:term:`universal function` (or :term:`ufunc` for short) in DPNP. For
+universal function (or :term:`ufunc` for short) in DPNP. For
 more information, see the section on :ref:`Universal Functions
 <ufuncs>`.