Closes #938

Adds mention of dpctl.tensor, usm_ndarray and array API standard in
intro.rst.

Also adds URL to array API standard.

Author: oleksandr-pavlyk

docs/docfiles/intro.rst

@@ -3,14 +3,20 @@ Welcome to Data-parallel Control (dpctl)'s documentation!
 
 The data-parallel control (dpctl) library provides C and Python bindings for
 :sycl_spec_2020:`SYCL 2020 <>`. The SYCL 2020 features supported by dpctl are
-limited to those included by Intel's DPCPP compiler and specifically cover the
+limited to those included by Intel's DPC++ compiler and specifically cover the
 SYCL runtime classes described in :sycl_runtime_classes:`Section 4.6 <>`
 of the SYCL 2020 specification. Apart from the bindings for these runtime
 classes, dpctl includes bindings for SYCL USM memory allocators and
 deallocators. Dpctl's Python API provides classes that implement
 `Python buffer protocol <https://docs.python.org/3/c-api/buffer.html>`_
 using SYCL USM memory; making it possible to create Python objects that are
-backed by SYCL USM memory.
+backed by host-accessible SYCL USM memory.
+
+Dpctl implements N-dimensional array Python object :class:`dpctl.tensor.usm_ndarray` to
+logically address USM memory allocations, and contains growing implementation of
+operations on such objects confofrming :array_api:`array API specification <>` in
+:class:`dpctl.tensor` namespace.
 
 Dpctl also supports the DPCPP :oneapi_filter_selection:`oneapi::filter_selector <>` extension and has
-experimental support for SYCL's ``kernel`` and ``program`` classes.
+experimental support for SYCL's interoperability ``kernel`` and
+``kernel_bundle<bundle_state::executable>`` classes.

docs/docfiles/urls.json

@@ -14,5 +14,6 @@
     "sycl_platform": "https://sycl.readthedocs.io/en/latest/iface/platform.html",
     "sycl_queue": "https://sycl.readthedocs.io/en/latest/iface/queue.html",
     "sycl_runtime_classes": "https://www.khronos.org/registry/SYCL/specs/sycl-2020/html/sycl-2020.html#_sycl_runtime_classes",
-    "sycl_spec_2020": "https://www.khronos.org/registry/SYCL/specs/sycl-2020/html/sycl-2020.html"
+    "sycl_spec_2020": "https://www.khronos.org/registry/SYCL/specs/sycl-2020/html/sycl-2020.html",
+    "array_api": "https://data-apis.org/array-api/latest/"
 }