Fixed wordings, added hyperlinks to extension generators

Author: oleksandr-pavlyk

docs/doc_sources/api_reference/index.rst

@@ -16,12 +16,18 @@ The package ``dpctl`` provides
 * Python C-API
    - :ref:`C API <dpctl_capi>` for working with Python classes defined in :mod:`dpctl`
 * Extension generators
-   - :ref:`Cython declarations <dpctl_cython_api>` for classes defined in :py:mod:`dpctl` and supporting functions
-   - :ref:`Integration with pybind11 <dpctl_pybind11_api>`, defining type casters mapping SYCL classes to Python classes, as well as defining C++ classes wrapping a Python object for :class:`dpctl.tensor.usm_ndarray` and :mod:`dpctl.memory` objects.
-   - :ref:`Integration with CMake <dpctl_cmake_support>` to simplify building DPC++-based Python extension using scikit-build.
+   - :ref:`Declarations <dpctl_cython_api>` for classes defined in :py:mod:`dpctl` and supporting functions for use in `Cython <cython_docs_>`_.
+   - :ref:`Integration <dpctl_pybind11_api>` with `pybind11 <pybind11_docs_>`_ defines type casters connecting SYCL classes and Python classes, as well as defines C++ classes wrapping a Python object for :class:`dpctl.tensor.usm_ndarray` and :mod:`dpctl.memory` objects.
+   - :ref:`Integration <dpctl_cmake_support>` with `CMake <cmake_docs_>`_ to simplify building DPC++-based Python extension using `scikit-build <skbuild_docs_>`_.
 * C API for DPC++ runtime
    - :doc:`DPCTLSyclInterface C library <libsyclinterface/generated/index>`
 
+
+.. _cmake_docs: https://cmake.org/documentation/
+.. _cython_docs: https://cython.readthedocs.io/en/latest/
+.. _skbuild_docs: https://scikit-build.readthedocs.io/en/latest/
+.. _pybind11_docs: https://pybind11.readthedocs.io/en/stable/
+
 .. toctree::
    :hidden: