Add Intel pypi channel

Author: ekomarova

README.md

@@ -19,9 +19,17 @@ or from conda-forge channel:
 To install mkl_fft Pypi package please use following command:
 
 ```
-   python -m pip install mkl_fft
+   python -m pip install --index-url https://software.repos.intel.com/python/pypi --extra-index-url https://pypi.org/simple mkl_fft
 ```
 
+If command above installs NumPy package from the Pypi, please use following command to install Intel optimized NumPy wheel package from Intel Pypi Cloud:
+
+```
+   python -m pip install --index-url https://software.repos.intel.com/python/pypi --extra-index-url https://pypi.org/simple mkl_fft numpy==<numpy_version>
+```
+
+Where `<numpy_version>` should be the latest version from https://software.repos.intel.com/python/conda/
+
 ---
 
 Since MKL FFT supports performing discrete Fourier transforms over non-contiguously laid out arrays, MKL can be directly