Deprecation warning for examples in documentation

[pauljurczak]

Running an example from https://intelpython.github.io/numba-dpex/latest/CoreFeatures.html or https://intelpython.github.io/numba-dpex/latest/index.html produces deprecation warning:

DeprecationWarning: The current syntax for specification of kernel lauch parameters is deprecated. Users should set the kernel parameters through Range/NdRange classes.
Example:
    from numba_dpex import Range,NdRange

    # for global range only
    <function>[Range(X,Y)](<parameters>)
    # or,
    # for both global and local ranges
    <function>[NdRange((X,Y), (P,Q))](<parameters>)
  sum[20, dpex.DEFAULT_LOCAL_SIZE](a, b, c)
/home/paul/st-python/oneapi/t-2.py:20: DeprecationWarning: Empty local_range calls are deprecated. Please use Range/NdRange to specify the kernel launch parameters:
Example:
    from numba_dpex import Range,NdRange

    # for global range only
    <function>[Range(X,Y)](<parameters>)
    # or,
    # for both global and local ranges
    <function>[NdRange((X,Y), (P,Q))](<parameters>)
  sum[20, dpex.DEFAULT_LOCAL_SIZE](a, b, c)

[diptorupd]

Addressed in latest revision of documentation site.