Update README.md with info from Numba-PyDPPL

Moved related topics from README.rst for Numba-PyDPPL.

Author: PokhodenkoSA

README.md

@@ -1,12 +1,15 @@
 # numba-dppy
 
-## Numba + dpCtl + dpNP = numba-dppy
+## Numba + dpPy + dpCtl + dpNP = numba-dppy
 
 `numba-dppy` extends Numba with new backend for support compilation
 for Intel CPU and GPU architectures.
 
 For more information about Numba, see the Numba homepage:
-http://numba.pydata.org
+http://numba.pydata.org.
+
+Note: `numba-dppy` requires patched version of Numba.
+See https://github.com/IntelPython/numba.
 
 For more information about dpCtl, see the dpCtl homepage:
 https://intelpython.github.io/dpctl/
@@ -16,6 +19,47 @@ https://intelpython.github.io/dpnp/
 
 ## Dependencies
 
-* numba
-* dpCtl
-* dpNP (optional)
+* numba >=0.51 (IntelPython/numba)
+* dpCtl >=0.3.8
+* dpNP >=0.3 (optional)
+* llvm-spirv (SPIRV generation from LLVM IR)
+* llvmdev (LLVM IR generation)
+* spirv-tools
+
+## dpPy
+
+dpPy is a proof-of-concept backend for NUMBA to support compilation for
+Intel CPU and GPU architectures.
+The present implementation of dpPy is based on OpenCL 2.1, but is likely
+to change in the future to rely on Sycl/DPC++ or Intel Level-0 driver API.
+
+## Installation
+
+Use setup.py or conda (see conda-recipe).
+
+## Testing
+
+See folder `numba_dppy/tests`.
+
+Run tests:
+```bash
+python -m numba.runtests numba_dppy.tests
+```
+
+## Examples
+
+See folder `numba_dppy/examples`.
+
+Run examples:
+```bash
+python numba_dppy/examples/sum.py
+```
+
+## How Tos
+
+Refer the HowTo.rst guide for an overview of the programming semantics,
+examples, supported functionalities, and known issues.
+
+## Reporting issues
+
+Please use https://github.com/IntelPython/numba-dppy/issues to report issues and bugs.